4.4 Prove Triangle Congruence
Vocabulary Review Words: Congruent Figures Corresponding Parts
Example 1: Prove With SSS
Example 1 Practice 1. Yes; SSS 2. No 3 does not equal 4 3. Yes, SSS
Example 2: Standardized Test Practice Answer: A
Example 3 Determine if the triangles are congruent. Triangle ABC: A(-2, -2), B(4, -2), C(4, 6) Triangle DEF: D(5, 7), E(5, 1), F(13, 1) Use distance formula Yes they are congruent
Example 4 Determine if the figures are stable. No, there is not Yes stable No, the bottom is A diagonal support no stable
Homework Pg 234 #1, 3, 5, 7, 9, 11, 13, 14, 16, 17, 19, 21, 23, 26