WesleyChristieCassieCarlos SmartBoard KatieAntony’oMarlena MikeNaJWKimDavidAndreiJeff BrittanyChelseaAnthonySaraLydiaBrianna DanielleLateshaLouisSochimaVince.

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Presentation transcript:

WesleyChristieCassieCarlos SmartBoard KatieAntony’oMarlena MikeNaJWKimDavidAndreiJeff BrittanyChelseaAnthonySaraLydiaBrianna DanielleLateshaLouisSochimaVince Geometry 217 – C216 – Block 5 Door

Warm-up

Agenda Homework Review Chapter 4 Identifying Congruent Triangles Bring your books for Wednesday

4-2 Study Guide

4-2 Practice

4-2 Enrichment m  D + m  E + m  F = 180 m  D + 3(m  D) + 3(m  D) - 9 = 180 7(m  D) - 9 = 180 7(m  D) = 189 m  D = 27, m  E = 81, m  F = 72

4-2 Enrichment m  R + (m  R - 5) + (m  R + 5) = 180 m  R + m  S + m  T = 180 m  R = 60, m  S = 55, m  T = 65

4-2 Enrichment m  J + 4(m  J) + 5(m  J) = 180 m  J + m  K + m  L = 180 m  J = 18, m  K = 72, m  L = 90

4-2 Enrichment m  X + 2(m  X) (m  X) + 2 = 180 m  X + m  Y + m  Z = 180 m  X = 37, m  Y = 67, m  Z = 76

4-2 Enrichment

4-2 Measuring Angles Review

4-3 Exploring Congruent Triangles ABC

4-3 Exploring Congruent Triangles DEF

Congruent Sides corresponds to

Congruent Angles

Congruence Transformations Sliding, Rotating and Flipping does not change congruence.

4-3 Exploring Congruent Triangles

W

Definition of Congruent Triangles Two triangles are congruent if and only if their corresponding parts are congruent. CPCTC – Corresponding Parts of Congruent Triangles are Congruent

Answers Ahead

4-3 Study Guide

Homework 4-3 Study Guide & Practice