# Triangle Geometry

A triangle is a 2-dimensional shape with three sides and three angles.

A triangle has some important dimensions: the length of the base and the height. It also has an area, which is the amount of space contained by a triangle.

This widget allows you to find the length of the base, height and area of a triangle.

## Learn About Triangle Geometry

Draw a triangle by:

- Clicking on the canvas, or
- Entering
__both__the base and height.

## Dimensions of the Triangle

= ^{1}⁄_{2} × base × height