# Lesson 3Similar Triangles & Other FiguresSolidify Understanding

## Set

Provide an argument to prove each conjecture, or provide a counterexample to disprove it.

### 10.

All right triangles are similar.

### 11.

All regular polygons are similar to other regular polygons with the same number of sides.

### 12.

The polygons on the grid are similar.

### 13.

The polygons on the grid are similar.

A sequence of transformations occurred to create the two similar polygons. Provide a specific set of steps that can be used to create the image from the pre-image with one, two, or three transformations.

### 18.

One definition of similar triangles is based on transformations. However, there are other criteria for determining whether or not triangles are similar. What are these other criteria?

### 19.

Determine whether or not the pairs of triangles are similar and explain why.

## Go

For each pair of similar polygons, give three ratios that would be equivalent.