201715 similar triangles AA postulate .notebook Today is Tues 1/5 Do Now: Take out HW and grade sheet Take calc Copy down HW AA Postulate W.S. Homework Answers January 05, 2017 201715 similar triangles AA postulate .notebook what is the value of x? Today's Objective: Similar Triangles (AA Postulate) January 05, 2017 201715 similar triangles AA postulate .notebook January 05, 2017 Method #2: AA Similarity Postulate Two triangles with two pairs of equal angles are similar How come we only have to show that two angles are congruent? Why not all? 65 65 45 ~ 45 201715 similar triangles AA postulate .notebook Is ΔABC ~ ΔA'B'C'? Write an informal proof Is ΔABC ~ ΔA'B'C'? January 05, 2017 201715 similar triangles AA postulate .notebook January 05, 2017 Is ΔABC ~ ΔA'B'C'? Are the triangles similar? Remember CORRESPONDING angles are congruent A 201715 similar triangles AA postulate .notebook January 05, 2017 Find missing angle measures if ΔABC ~ ΔDER D A 80 50 B C E x Given: Find x 46 74 x R ABC ~ ADE 201715 similar triangles AA postulate .notebook January 05, 2017

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