Bellwork. 7.3A SIMILAR TRIANGLES Students will be able to prove that two triangles are similar.

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Objectives Prove that two triangles are similar using AA, SAS, and SSS.

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Presentation transcript:

Bellwork

7.3A SIMILAR TRIANGLES Students will be able to prove that two triangles are similar.

Hmmm?  What two things must be true in order for triangle ABC to be similar to triangle DEF?  Are they similar?

Proving Triangles Similar (Shortcuts) 1. AA Similarity 2. SSS Similarity 3. SAS Similarity

Example 1  Determine if triangles are similar and justify using a postulate.

Example 2  Given: Conclusion:

Example 3  Given:  Prove:

Ticket to Leave (with Partner)  Given:  Prove:

Homework  Worksheet