8.2  and 8.3 Proving Triangles Similar

Similarity, Right Triangles, and Trigonometry G G-SRT:
Understand similarity in terms of similarity transformations.
2.Given two figures, use the definition of similarity in terms of similarity transformations to decide if they are similar; explain using similarity transformations the meaning of similarity for triangles as the equality of all corresponding pairs of angles and the proportionality of all corresponding pairs of sides.
3. Use the properties of similarity transformations to establish the Angle-Angle (AA) criterion for two triangles to be similar.