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Download 4.2 Congruence and Triangles
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Transcript
Congruent figures • Have the same size • And shape. Non Congruent figures • Have different shape • And size Corresponding parts of congruent triangles are congruent. A D B E C F ABC DEF ABC DEF The corresponding sides are also congruent…. ABDE BCEF ACDF ABC DEF Theorem 4.3-Third Angle Theorem • If two angles of one triangle are congruent to two angles of another triangle, • Then the third angles are also congruent. Are these two triangles congruent? Theorem 4.4 Properties of Triangle congruence • • • • Triangle congruence is Reflexive Symmetric Transitive Review Problem • What is the distance between the points C(3,-8) and D(-13,7)? • What is the coordinate of the midpoint of segment CD? Assignment 4.2
