# SAS and SSS Similarity

- Author:
- Patrick Honner

Name two similar triangles. State the theorem or postulate that allows you to conclude the triangles are similar.

Name two similar triangles. State the theorem or postulate that allows you to conclude the triangles are similar.

Name two similar triangles. State the theorem or postulate that allows you to conclude the triangles are similar.

The sides of two triangles, *ABC* and *TRI* are given above.
Angle *A* is congruent to one of the angles of triangle *TRI*. Identify the which angle and explain why the two are congruent.

Suppose two rectangles are similar, and that the scale factor is *k*. In 2-3 complete sentences, explain why the ratio of the diagonals of the two rectangles should also be *k*.