Classify triangles and find measures of their angles. Identify congruent figures. Use theorems about isosceles and equilateral triangles. Use the side lengths to prove triangles are congruent. Use sides and angles to prove congruence. Use two more methods to prove congruence. Use congruent triangles to prove corresponding parts congruent.

' If two sides of a triangle are congruent, then the angles opposite those sides are congruent. (Isosceles Triangle Theorem) If two angles of a triangle are congruent, then the sides opposite CB If AB If LA CB, then LA CC, then AB - those angles are congruent. Example Find x. (5x- 10)0 BC = BA, so Example. Find x. 3x- 13 R 2x ml-S m L T, so Isos. proportional, and the included angles are congruent, are the triangles similar? Use paper, a ruler and compass for this activity. 1. Use a ruler, pencil, and paper to draw an angle and label it óA. 2. Use a ruler and compass to construct an angle congruent to óA. Label it óD. 3. Mark a point on one of the rays of óA that is 9 cm from A ...

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Congruent sides and angles Get the Gizmo ready: Under . Conditions, select . A. Check that . A. is selected under . Conditions. Notice that (B and (E are congruent. Do you think this condition guarantees that the two triangles are always congruent? Explain. Drag the vertices until the triangles are clearly not congruent. 2. Which theorem can we use to prove that opposite angles of parallelograms are congruent? 3. What allows us to say that 4ABD ˘= 4CDB? 4. What allows us to say that AB ˘=DC and AD ˘=BC? 5. In addition to the theorems and de ni-tions already stated, what is necessary to prove that a parallelogram’s diago-nals bisect each other? 6.
Opposite sides are congruent. Consecutive angles are supplementary. The diagonals bisect each other. AIS O : All four angles are right angles. o The diagonals are congruent. ZUTS, ZTSR, ZSRU, and ZRUT are right angles. US Example 2 Quadrilateral RUTS above is a rectangle. If mZSTR = 8x + 3 and mZUTR = 16x - 9, find mZSTR. ZUTS is a right angle, so This quiz/worksheet combo will ask you questions about the proofs relating to the sides and angles of an isosceles triangle. Quiz & Worksheet Goals Find out how well you understand the following:
A line crossing a pair of parallel lines forms pairs of angles that are either congruent or supplementary. You can use simple proofs to show these relationships. EXAMPLE In the diagram, line p is parallel to line q. You can show that: (1) Any pair of black numbered angles is a pair of congruent angles. Mortal kombat mobile best characters 2020
An example of two things being similar or congruent is; two bangles of the same size and shape are said to be congruent. Two triangles are said to be congruent when they have all sides equal and all the angles equal. For example, a triangle LMN is said to be congruent when sides LM = MN are equal, as well as Perpendicular lines form a right angle. [1 pt.] Step 1: Trisect the angle. 90 3 = 30 [2 pts] Step 2: Bisect the resulting angle. 30 2 = 15 [2 pts] Step 3: Trisect the resulting angle. 15 3 = 5 [2 pts] The smallest angle has a measure of 5 . [3 pts] Lesson 2: Perpendicular Algebra Worksheet: #8, #10 8. ...................................................................................(11 points) !
Geo 9 Ch 4.2-4.6 12 4.5 AAS, HL AAS: If two angles and a non-included side of one triangle are congruent to the corresponding parts of another triangle, then the triangles are congruent. This foldable allows student to review the ways to prove 2 triangles congruent but it also shows 2 ways that do not work and examples of non-congruent triangles. These pages are formatted to print front and back, this is why they appear to be in wrong order.
Proving Angles Congruent Find the value of each variable. 1. To start, identify the relationship between the marked angles in the diagram. 3 ! e marked angles are 9.! en write an equation to express this relationship. 9 5 9 2. 3. Find the measures of the labeled angles in each exercise. 4. Exercise 1 5. Exercise 2 6. Exercise 3Two triangles are congruent if they have the same three sides and exactly the same three angles. We have the methods of SSS (side-side-side), SAS (side-angle-side) and ASA (angle-side-angle). Note that for congruent triangles, the sides refer to having the exact same length. The LaTex symbol for congruence is ≅ \cong ≅ written as \cong.
This worksheet has 3 proofs for proving triangles congruent using SSS and SAS. The proofs include Definition of Congruent Segments, Reflexive Property of Congruence, Alternate Interior Angles Theorem, Definition of Angle Bisector, and Definition of Isosceles Triangle. This worksheet helps students. Subjects: Proving Angles Are Congruent - Displaying top 8 worksheets found for this concept. Some of the worksheets for this concept are Proving triangles congruent, Work section 2 8 proving angle relationships, Proving triangles are congruent by sas asa, Proving angles congruent, Lesson 2 5 proving angles congruent, Geometry proving statements about segments and angles, Proving triangles congruent, 4 s sas asa and aas congruence.
Congruent sides and angles Get the Gizmo ready: Under . Conditions, select . A. Check that . A. is selected under . Conditions. Notice that (B and (E are congruent. Do you think this condition guarantees that the two triangles are always congruent? Explain. Drag the vertices until the triangles are clearly not congruent. Our measuring angles worksheets make angle practice easy. With fun activities, including measuring spiderwebs, steering wheels, and laser beams, your child is sure to enjoy our kind of geometry. Measuring angles worksheets help bridge gaps between third, fourth, and fifth grade math.
_____ Rombach-WS 6-2 Proving Triangles Congruent SSS, SAS, ASA, AAS, HL SOL G6 1. Included Angle - In a triangle, the angle formed by two sides is the included angle for the two sides. 2. Included Side - The side of a triangle that forms a side of two given angles. 3. G.CO.C.10 Prove theorems about triangles. Theorems include: measures of interior angles of a triangle sum to 180°; base angles of isosceles triangles are congruent; the segment joining midpoints of two sides of a triangle is parallel to the third side and half the length; the medians of a triangle meet at a point.
angles and a non-included side of one triangle are congruent to two angles and the corresponding non-included side of a second triangle, then the two triangles are congruent. 4.6 Base Angles Theorem: If two sides of a triangle are congruent, then the angles opposite them are congruent. Corollary: If a triangle is equilateral, then it is ... Nov 10, 2019 · Congruent triangles are triangles that are identical to each other, having three equal sides and three equal angles. Writing a proof to prove that two triangles are congruent is an essential skill in geometry. Since the process depends upon the specific problem and givens, you rarely follow exactly the same process. This can be
2 6 Practice Proving Angles Congruent - Displaying top 8 worksheets found for this concept.. Some of the worksheets for this concept are Geometry chapter 2 reasoning and proof, Geometry proofs and postulates work, Proving statements about segments and angles, Proving triangles are congruent by sas asa, Proving angles congruent, Do not edit changes must be made through file info name, Unit 4 ... We will use the SAS (SIDE-ANGLE-SIDE) to prove that the two triangles are congruent. This states that if two sides and the included angle in one triangle are congruent to two sides and the included angle of another triangle, then the two triangles are congruent.
Welcome to the geometry worksheets page at Math-Drills.com where we believe that there is nothing wrong with being square! This page includes Geometry Worksheets on angles, coordinate geometry, triangles, quadrilaterals, transformations and three-dimensional geometry worksheets. Proving Angles Congruent Find the value ofx. Form G (5x)0 1500 40)0 900 (7x - 12) o (Q - Find ml-I using the given information. 7. = 8. mL1 = 51, mL4 = + 90 8x - 120, mL4 = 4x + 16 9. mL2 = 180 31, = Complete the proofs by filling in the blanks. + 15) o 10. Given: LA LBDA Prove: x = 5 (llx + Statements Reasons l) Given 2) Vertical Angles are 5) + 20 =
The angle bisector theorem states that: \[\frac{AB}{AD}=\frac{BC}{CD}\] Proof: Draw a line parallel to \(AB\) through \(C\). Let \(E\) be the intersection of the new line and the angle bisector. Explain why: \(\angle ABD = \angle CED\) triangle \(\bigtriangleup BCE\) is an isosceles triangle, and hence why \(BC=CE\). \(\angle BDA = \angle CDE\) Our last general shortcut for proving congruent triangles is the angle-angle-side (AAS) condition. If two triangles share two angles of the same measure as well as one side (not included by the angles) of the same measure, the triangles are congruent. Let's consider our triangle ABC and let's copy two of the angles and a non-included side.
Oct 07, 2020 · Math Teacher Mambo Proving Triangles Congruent Proving Triangles Congruent Triangle Worksheet Congruent Triangles Worksheet . Sss and sas are important shortcuts to know when solving proofs. Triangle congruence sss and sas worksheet answers. If no triangles can be proved congruent write neither. Proving Angles Congruent G 11. Given: Prove: £8 Statements Reasons l) Given 3) Transitive Property of Congruence 4) Vertical Angles are 12. Complete the paragraph proof below. Given: Zl and L 2 are complementary L 2 and L 3 are complementary BD bisects LABC Prove: mLl = 45 and We know that are complementary ana L z ana L 5
Proving Angles Are Congruent - Displaying top 8 worksheets found for this concept. Some of the worksheets for this concept are Proving triangles congruent, Work section 2 8 proving angle relationships, Proving triangles are congruent by sas asa, Proving angles congruent, Lesson 2 5 proving angles congruent, Geometry proving statements about segments and angles, Proving triangles congruent, 4 s sas asa and aas congruence. In this worksheet, we will practice proving that two triangles are congruent using either the angle-side-angle (ASA) or the angle-angle-side (AAS) criterion and determining whether angle-side-side is a valid criterion for triangle congruence or not. Q1: Determine the lengths of 𝐴 𝑁 and 𝐵 𝑁. A 𝐴 𝑁 = 3 8 c m, 𝐵 𝑁 = 2 2 c m
250 Chapter 5 Congruent Triangles Goal Show triangles are congruent using ASA and AAS. Key Words • vertical angles p. 75 • alternate interior angles p. 121 5.3 Proving Triangles are Congruent: ASA and AAS 1 Draw a segment 3 inches long. Label the endpoints A and B. 3 Draw an angle measuring 30 8 at point B. 2 Draw an angle measuring 45 8 at ... Proving Triangles Are Congruent. Displaying all worksheets related to - Proving Triangles Are Congruent. Worksheets are 4 s sas asa and aas congruence, Proving triangles are congruent by sas asa, Proving triangles congruent, Assignment date period, 4 congruence and triangles, Proving triangles congruent, Congruent triangles 2 column proofs, Congruent triangles work 1.
2. Which theorem can we use to prove that opposite angles of parallelograms are congruent? 3. What allows us to say that 4ABD ˘= 4CDB? 4. What allows us to say that AB ˘=DC and AD ˘=BC? 5. In addition to the theorems and de ni-tions already stated, what is necessary to prove that a parallelogram’s diago-nals bisect each other? 6. If two angles are supplementary to two other congruent angles, then they’re congruent. (This is the four-angle version.) The previous four theorems about complementary and supplementary angles come in pairs: One of the theorems involves three segments or angles, and the other, which is based on the same idea, involves four segments or angles.
This worksheet has 3 proofs for proving triangles congruent using ASA and AAS. The proofs include Definition of Perpendicular Lines, Reflexive Property of Congruence, Alternate Interior Angles Theorem, Definition of Angle Bisector, and Right Angles Theorem. This worksheet helps students to review pFor Students 8th - 9th In this proving angles congruent worksheet, students find the values of variables when given adjacent, supplementary, vertical or complementary angles. This one-page worksheet contains 15 multi-step problems. Get Free Access See Review
Prove that triangle and triangle are congruent. You must give reasons to support your statements. [5] 2. Steph is solving a problem. Cube A has a surface area of 150 cm2 Cube B has sides half the length of cube A What is the volume of cube B? To solve this problem, Steph decides to halve the surface area I have two angles and two more sides, so my short-cut is going to be side-angle-side. So my first three statements are going to be proving two sides congruent, two angles congruent and then two more sides. So our first statement is going to be AB and BC are congruent, so I’m going to write that.
Mar 04, 2014 · AAS (Angle, Angle, Side) • If two angles and a nonincluded side of one triangle are congruent to two angles and the corresponding non- C included side of another triangle, . . . then the 2 triangles are CONGRUENT! A D B F E 13. Diana and Joby wrote the following proofs to prove that vertical angles are congruent. Who is correct? Diana's Proof Statement Justification ∠1 + ∠2 = 180° Definition of Supplementary Angles ∠1 + ∠4 = 180° Definition of Supplementary Angles ∠1 + ∠2 = ∠1 + ∠4 Transitive Property of Equality Joby's Proof Statement Justification
Oct 18, 2018 · 1 Prove That Opposite Sides Of A Parallelogram Are Congruent Parallelograms opposite angles are congruent geometry help discussion section 1 3 discussion section 1 3 learn the properties of parallelograms caddell prep online. Whats people lookup in this blog: Alternate Interior Angles Are Congruent In Parallelogram 5.2 Proving Triangles are Congruent: SSS and SAS 241 Goal Show triangles are congruent using SSS and SAS. Key Words • proof The Geo-Activity suggests the following postulate. 5.2 Proving Triangles are Congruent: SSS and SAS 2 Open your compass to measure AB&*of TABC . Use this length to construct DE&*so that it is congruent to AB&*.
angles are congruent. • If two angles are complementary to the same angle of to two congruent angles, then the two angles are congruent. • All right angles are congruent. • Vertical angles are congruent. parallel lines, angles formed by parallel lines and transversals, perpendicular lines • If two parallel lines are cut by a transversal ... Aug 05, 2008 · Proof: We will show that the result follows by proving two triangles congruent. First locate point P on side so , and construct segment :. Notice that is a transversal for parallel segments and , so the corresponding angles, and are congruent:
Metric units worksheet. Complementary and supplementary worksheet. Complementary and supplementary word problems worksheet. Area and perimeter worksheets. Sum of the angles in a triangle is 180 degree worksheet. Types of angles worksheet. Properties of parallelogram worksheet. Proving triangle congruence worksheet. Special line segments in ...Name the corresponding congruent angles and sides. Name the congruent triangles. Properties of Triangle Congruence : Example #2: If ∆WXZ ≅∆STJ, name the congruent angles and congruent sides. Angles – Sides – Reflexive Symmetric Transitive
4.1-4.4 Begin proofs with this worksheet . I. In Exercises 1-18 the goal is to prove two triangles congruent. 1. Pair vertex D with vertex ____ and vertex E with ...
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(or to congruent angles), then they are congruent. If ∠1 and ∠2 are supplementary and ∠3 and ∠2 are supplementary, then ∠1 ≅ ∠3. Proof Example 2, p. 107 (case 1); Ex. 20, p. 113 (case 2) Theorem 2.5 Congruent Complements Theorem If two angles are complementary to the same angle (or to congruent angles), then they are congruent. angles, so they are congruent. So, two pairs of sides and their included angles are congruent. PQR and PSR are congruent by the SAS Congruence Theorem. MMonitoring Progressonitoring Progress Help in English and Spanish at BigIdeasMath.com 3. You are designing the window shown in the photo. You want to make DRA congruent to DRG.

All congruent shape exercises are not the same, and these smart worksheets will help students understand congruence through a variety of exciting activities. Students will master congruent rectangles, squares, triangles, and angles through worksheets. May 09, 2013 · If in two right triangles the hypotenuse and one sideof one triangle are equal to the hypotenuse and oneside of the other triangle, then the two triangles arecongruent.Given: Two right angle TriangleABC and PQR whereAB = PQ and AC = PR,To Prove:Δ ABC ≅ Δ PQRProof:we Know that these Triangles are Right angleSo < B = <C ……………..(900)AB = PQ and AC = PR -----(Given)Δ ABC ≅ Δ PQR -----(by SAS)RHS congruence ruleABCPRQ

Segment Proofs Worksheet prove that DB bisects AC. ÐDAE = BCE (right angles and given) ÐDEA = ÐBEC (Vertically opposite angles) DE = BE (given) \DADE DCBE (AAS) Because of congruency; \AE = CE (Corresponding sides in congruent triangles are equal.) \DB bisects AC. 5 Prove that if one angle in a parallelogram is Arbitrarily set 90°, the quadrilateral is a rectangle. angles are congruent, which means that ⃖AC ⃗ ⃖DF ⃗ by the Corresponding Angles Converse. 22. yes; m∠BEF = 180° − 37° = 143° by the Linear Pair Postulate. So, by defi nition, a pair of corresponding angles are congruent, which means that ⃖AC ⃗ ⃖DF ⃗ by the Corresponding Angles Converse. 23. • If all three angles of an acute triangle are congruent, then the triangle is an equiangular triangle. Classify each triangle. a. All three angles are congruent, so all three angles have measure 60°. The triangle is an equiangular triangle. b. The triangle has one angle that is obtuse. It is an obtuse triangle. c. The triangle has one right ... to prove similar triangles, which will prove congruent angles, which will then give us parallel lines! Notice that since 1 3 = 2 6, we can say: SA AZ = TA AR. Nice. Also, the vertical angles on the diagram tell us that !SAT"!ZAR, so by SAS !, we’ve shown that !SAT"!ZAR, and let’s double check the correspondence by drawing them

Congruent Angles Displaying top 8 worksheets found for - Congruent Angles . Some of the worksheets for this concept are 4 congruence and triangles, Supplementary congruent angles 1, Working with congruent angles, Corresponding angles work find the missing angles, Angle angle side work and activity, Working with polygons, 4 s sas asa and aas congruence, Work section 2 8 proving angle relationships. Feb 8, 2020 - Congruent Triangles Worksheet Answers - 50 Congruent Triangles Worksheet Answers , 63 Best Geometry Congruent Triangles Images On Pinterest (a) angle D (c) angle r 480 Fig. 22.63 Tangents to a circle In Fig. 22.63, TA and TB are nngents to the circle with centre O. Given that angle ATB = 480, calculate: (b) .angle ACB angle AOB 130 Fig. 22.59 Tangents to a circle In Fig. 22.59, TA and TB are tangents to a circle with centre O. Given that angle ATO = 130, evaluate angle:

Some of the worksheets for this concept are Geometry chapter 2 reasoning and proof, Geometry proofs and postulates work, Proving statements about segments and angles, Proving triangles are congruent by sas asa, Proving angles congruent, Do not edit changes must be made through file info name, Unit 4 triangles part 1 geometry smart packet, Congruence rigid motions.

sides are congruent, but the congruent angle is not the included angle. Not enough information; one pair of corresponding sides and corresponding angles are congruent, but the other pair of corresponding sides that form the included angle must also be congruent. SAS; two pairs of corresponding sides and their included angle are congruent. SSS ... Proving Triangles Congruent Worksheet - 50 Proving Triangles Congruent Worksheet , Proving Triangles Congruent Worksheet Corresponding Sides and Angles of Congruent Triangles Worksheet 7.G.1 50 Triangle Congruence Worksheet Answer Key Name: _____ Pd. _____ Rombach-WS 6-2 Proving Triangles Congruent SSS, SAS, ASA, AAS, HL SOL G6 1. Included Angle - In a triangle, the angle formed by two sides is the included angle for the two sides. 2. Included Side - The side of a triangle that forms a side of two given angles. 3. Side-Side-Side (SSS) - If the sides of one triangle are congruent to the sides of a second triangle, then the ...

Basement apartments for rent in queensFeb 8, 2020 - Congruent Triangles Worksheet Answers - 50 Congruent Triangles Worksheet Answers , 63 Best Geometry Congruent Triangles Images On Pinterest This worksheet has 3 proofs for proving triangles congruent using SSS and SAS. The proofs include Definition of Congruent Segments, Reflexive Property of Congruence, Alternate Interior Angles Theorem, Definition of Angle Bisector, and Definition of Isosceles Triangle. This worksheet helps students. Subjects: Aug 18, 2018 - In this packet, you will find a maze that can be used to have students practice identifying which method could be used to prove triangle congruent.. In order to be successful with this maze, students should know how to: recognize tick marks that identify specific sides and angles that are congruent... _____ LT 3: I can name and use corresponding parts of congruent triangles. _____ LT 4: I can apply the SSS, SAS, ASA, and AAS postulates to test and prove triangle congruence. _____ LT 5: I can use properties of isosceles and equilateral triangles. LT 1: I can identify and classify triangles by sides and by angles. Worksheet – Congruent Triangles Date _____HR _____ Determine whether the following triangles are congruent. If they are, name the triangle congruence (pay attention to proper correspondence when naming the triangles) and then identify the Theorem or Postulate (SSS, SAS, ASA, AAS, HL) that supports your conclusion.

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    May 13, 2016 · Prove theorems about lines and angles. Theorems include: vertical angles are congruent; when a transversal crosses parallel lines, alternate interior angles are congruent and corresponding angles are congruent; points on a perpendicular bisector of a line segment are exactly those equidistant from the segment's endpoints.

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    Congruent Angles Displaying top 8 worksheets found for - Congruent Angles . Some of the worksheets for this concept are 4 congruence and triangles, Supplementary congruent angles 1, Working with congruent angles, Corresponding angles work find the missing angles, Angle angle side work and activity, Working with polygons, 4 s sas asa and aas congruence, Work section 2 8 proving angle relationships. Oct 01, 2019 · Now let’s prove an important converse theorem: that if 2 corresponding angles are congruent, then the lines are parallel. Prove: If 2 corresponding angles formed by a transversal line intersecting two other lines are congruent, then the two lines are parallel. Strategy: Proof by contradiction. To prove this, we will introduce the technique of ... 2. Opposite angles of parallelogram are 3. Diagonals of a parallelogram Find the value Of x in each parallelogram. 24, CF Name each other. 6. 120, AF x 4. AD 24, AF 3x +4 5. BC- Find the value of a, b, x, and y in each parallelogram. 105- Find the sum of the measures of the interior angles of the indicated convex polygon 10. hexagon 11. 40-gon Dec 25, 2014 · Prove Move: At the beginning of this chapter we introduced CPCTC. Now, it can be used in a proof once two triangles are proved congruent. It is used to prove the parts of congruent triangles are congruent in order to prove that sides are parallel (like in Example 8), midpoints, or angle bisectors. Dec 26, 2020 · Congruent Worksheet (1 of 3) Congruent Worksheet (3 of 3) Similar to the above listing, the resources below are aligned to related standards in the Common Core For Mathematics that together support the following learning outcome: Jun 17, 2013 · In this post, we are going to prove the SSS Congruence Theorem. AAS (angle, angles side) = two angles and the non-included side of one triangle congruent to the corresponding parts of another triangle As. HL (hypotenuse, leg) = the hypotenuse and a leg of one right triangle congruent to the corresponding parts of another triangle As. Identify which property will prove these triangles congruent (ASA, AAS, HL I can prove triangles are congruent in a two-column proof. PRACTICE: Similarity Proofs Worksheet Monday, 12/3 7-4: Applications and Problem Solving I can use the triangle proportionality theorem and its converse. I can use the Triangle Angle Bisector Theorem. PRACTICE: Pg 485 #8-20, 25, 28, 34 Tuesday, 12/4

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      Cpctc Chapter 4 Proof Practice 4-4 using congruent triangles cpctc worksheet answers. Showing top 8 worksheets in the category - Cpctc Chapter 4 Proof. Some of the worksheets displayed are Using cpctc with triangle congruence, Geometry honors chapter 4 solutions to proof practice, Chapter 4 practice test geometry, Answers to exercises, Using congruent triangles 4 4 cpctc, Work cpctc name ... Definition of congruent angles 3. Symmetric Property of Equality 4. Definition of congruent angles WRITE PROOFS Before writing a proof, organize your reasoning by copying or drawing a diagram for the situation described. Then identify the GIVEN and PROVE statements. About This Quiz & Worksheet. In geometry, when two or more angles share the same measurement of degrees they are known as congruent angles. To be successful on this quiz, you will need to be able ... A line crossing a pair of parallel lines forms pairs of angles that are either congruent or supplementary. You can use simple proofs to show these relationships. EXAMPLE In the diagram, line p is parallel to line q. You can show that: (1) Any pair of black numbered angles is a pair of congruent angles. Then determine the measure of each angle. x x 150 150 140 (2x 1 20) (2x 1 20) P Q R M S N O 37. Proof Because all the interior angle measures of a regular n-gon are congruent, you can fi nd the measure of each individual interior angle. The measure of each }interior angle of a regular n-gon is (n 2 2) • 180 n. Write a paragraph proof to prove

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∠CDB ≅ ∠ABD since alternate interior angles are congruent when two parallel lines are cut by a transversal. ∠DMC ≅ ∠BMA because vertical angles are congruent. DC ≅ DC by the reflexive property. Now we have ∆AMB ≅ ∆CMD by the AAS theorem. By CPCTC, DM ≅MB and AM ≅MC. Therefore, AC and DB bisect each other.