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Published byAngelique Archer
Modified over 4 years ago
40 x 4x – 20 Solve. Warm up 1. 2y + 28 3y – 14° 2. 42
Congruent triangles have 3 congruent sides and 3 congruent angles. The parts of congruent triangles that “match” are called corresponding parts.
In a congruence statement ORDER MATTERS!!!! Everything matches up.
Corresponding Parts of Congruent Triangles are Congruent
Complete each congruence statement. C A E D B F If ABC DEF, then BC ___ EF
Complete each congruence statement. C A E D B F If ABC DEF, then A ___ DD
Complete each congruence statement. C A E D B F If ABC DEF, then C ___ FF
Fill in the blanks If CAT DOG, then AC ___ OD
Fill in the blanks BAT MON T ___ _____ ONM _____ MO NM ____ NN ATB BA TB
Fill in the blanks BCA ____ ____ GFE EGF CAB
Complete the congruence statement. _____ JKN MKL
Complete the congruence statement. _____ CBD ABD
There are 5 ways to prove triangles congruent.
Side-Side-Side (SSS) Congruence Postulate All Three sides in one triangle are congruent to all three sides in the other triangle
Side-Angle-Side (SAS) Congruence Postulate Two sides and the INCLUDED angle (the angle is in between the 2 marked sides)
Angle-Angle-Side (AAS) Congruence Postulate Two Angles and One Side that is NOT included
Angle-Side-Angle (ASA) Congruence Postulate Two angles and the INCLUDED side (the side is in between the 2 marked angles)
There is one more way to prove triangles congruent, but it’s only for RIGHT TRIANGLES…Hypotenuse Leg
Your Only Ways To Prove Triangles Are Congruent NO BAD WORDS
2 markings you can add if they aren’t marked already
Share a side Reason: reflexive property Vertical Angles Reason: Vertical Angles are congruent
Proving Triangles Congruent
4.5 Proving Δs are : ASA and AAS & HL
Hypotenuse – Leg Congruence Theorem: HL
CCGPS Analytic Geometry
Proving Δs are : SSS, SAS, HL, ASA, & AAS
40 x 4x – 20 Solve. Warm up 1. 2y + 28 3y – 14°
Chapter 4a: Congruent Triangles By: Nate Hungate, Gary Russell, J. P
1 MM1G3c Proving Triangles Congruent (AAS, HL). 2 Postulates AAS If two angles and a non included side of one triangle are congruent to the corresponding.
Blue – 3/9/2015 Gold – 3/10/2015. Last 2 classes, we talked about 3 ways we can determine triangle congruence. CPCTC – All 3 sides and 3 angles of.
Please pick up your workbook. ACC Math 1 EQ: What does it mean for two triangles to be congruent?
2.3: Exploring Congruent Triangles
Proving RightTriangles Congruent Free powerpoints at
Similarity & Congruency Dr. Marinas Similarity Has same shape All corresponding pairs of angles are congruent Corresponding pairs of sides are in proportion.
4.4 & 4.5 Proving Triangles Congruent
WARM-UP. SECTION 4.3 TRIANGLE CONGRUENCE BY ASA AND AAS.
4-4 & 4-5: Tests for Congruent Triangles
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