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# BASIC GEOMETRY Section 7.3: Triangle Similarity: AA, SSS, & SAS - PowerPoint PPT Presentation

BASIC GEOMETRY Section 7.3: Triangle Similarity: AA, SSS, & SAS. Proving Triangles are Similar. AA ~ Thm: If two angles of one triangle are congruent to two angles in another triangle, then the triangles are similar.

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### BASIC GEOMETRYSection 7.3: Triangle Similarity: AA, SSS, & SAS

• AA ~ Thm: If two angles of one triangle are congruent to two angles in another triangle, then the triangles are similar.

Proofs two sides of another and the included angles are congruent, then the triangles are ~.

• These 3 Thms are used the same as the congruent triangles ones in proofs.

• Properties of Similarity

Example 2: Verify that the triangles are similar. a similarity statement.

A) ∆PQR & ∆STU B) ∆DEF & ∆HJK

Assignment #3 BA to the nearest tenth.

• Page 474 #’s 1-6,9,10,34-36,(44)