Calculator for right-angeld triangles

With this Flash-Application you can calculate the different sides and angles of a right-angeld triangle. You can click at the red circles to modify the triangle. You can also type specific values in the inputfields below the animation.

Under the following link you can find similar programm over the construction of triangles: animation

The Pythagorean theorem

The most important theorem to calculate the sides of an right-angled triangle is the Pythagorean theorem.

Pythagorean theorem

To find out the length of an unknown side, you can convert the theorem to:

Pythagorean theorem