Proving Triangle Similarity by SSS and SAS Section 8.3

What You Will Learn Use the Side-Side-Side Similarity Theorem. Use the Side-Angle-Side Similarity Theorem. Prove slope criteria using similar triangles.

Using the Side-Side-Side Similarity Theorem (Take Note)

Using the SSS Similarity Theorem Is either △DEF or △GHJ similar to △ABC?

Using the SSS Similarity Theorem Find the value of x that makes △ABC ∼ △DEF

You Try

Using the Side-Angle-Side Similarity Theorem (Take Note)

Using the SAS Similarity Theorem

You Try