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Z. Warm Up . W. 12. 7.5. U. 5. V. X. Y. 6. XYZ. 5/6. 10. 9. 100. Proving Triangles Similar. Angle-Angle ( AA~ ) Similarity Postulate If two angles of one triangle are congruent to two angles of another triangle, then the two triangles are similar. D. A. E. F. B. C.
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Z Warm Up W 12 7.5 U 5 V X Y 6 XYZ 5/6 10 9 100
Proving Triangles Similar
Angle-Angle (AA~) Similarity Postulate If two angles of one triangle are congruent to two angles of another triangle, then the two triangles are similar. D A E F B C
Side-Side-Side (SSS~) Similarity THM If the corresponding sides of two triangles are proportional, then the triangles are similar. D A E F B C
Side-Angle-Side (SAS~) Similarity THM If the lengths of two sides are proportional and the included angle is congruent, then the triangles are similar D A F E B C
Ex. Determine whether the triangles are similar. If so, tell which similarity test is used and complete the statement. Yes, AA~ M G 68° 43° 68° 43° H F L K V NO Y 7 3 Z 5 X W U 11
S 5 4 Q P 12 15 R T Prove that RST~ PSQ 1. Two sides are proportional 2. Included angle is congruent SAS~