The square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides.
A right triangle has 3 sides. If we label the length of each side a, b and c, Pythagoras' theorem can be written as a formula:
This widget allows you to find the lengths of the sides of a right triangle.
Learn About Pythagoras' Theorem
Draw a right triangle by:
- Clicking on the canvas, or
- Entering two sides lengths.