Bellwork 1)When are two angles congruent? 2)In, if m ∠ A=64° and m ∠ B=71°, what is m ∠ C? 3)What property of angle congruence is illustrated by this statement?

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Presentation transcript:

Bellwork 1)When are two angles congruent? 2)In, if m ∠ A=64° and m ∠ B=71°, what is m ∠ C? 3)What property of angle congruence is illustrated by this statement? If and, then

Lesson 4.2 Apply Congruence and Triangles

Objective Identify congruent figures

Standard 5.0 – Students prove that triangles are congruent or similar, and they are able to use the concept of corresponding parts of congruent triangles

Academic Language Congruent figures Corresponding points

Congruent Same size, same shape

List congruent parts and write congruency statement

Practice

More practice……..

Raise your hand and explain this!

Example

Properties of Congruence Don’t forget they work with triangles as well – Reflexive – Symmetric – Transitive

Proof

Practice

Even more practice

Homework p.228 #1, 2, 5, 7, 9, 11, 13, 15, 19, 21