Triangle Geometry Widget

Learn About 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.

About This Widget

This widget allows you to find the length of the base, height and area of a triangle. Draw a triangle by:
  • Clicking on the canvas, or
  • Entering both the base and height.

Base:
Height:
Area:
= 12 × base × height

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See Also

What is a triangle? Finding the area of a triangle