# Similar Triangles

## Reference Topics 7-4

This site provides an introduction to similar triangles:

https://www.mathsisfun.com/geometry/triangles-similar.html

This interactive site demonstrates the similar triangle theorem:

http://www.mathwarehouse.com/geometry/similar/triangles/similar-triangle-theorems.php… See the whole entry

## Section 7.4: Similar Triangles

## 7.4 Outline

- Definition
- corresponding angles
- corresponding sides

- Similar triangle theorem
- proportional sides
- primary ratios

- Right triangle
- hypotenuse
- adjacent side
- opposite side

## 7.4 Essential Ideas

Two triangles are similar if two angles of one triangle are equal to two angles … See the whole entry