www.Mathematics-Monster.comFree Lessons and Exercise Worksheets

Pythagoras' Theorem

Learn About Pythagoras' Theorem

Pythagoras' theorem is a theorem concerning the three sides of a right triangle, that states:

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:

About This Widget

This widget allows you to find the lengths of the sides of a right triangle. Draw a right triangle by:

a:
b:
c:
Help Us To Improve Mathematics Monster

  • Do you disagree with something on this page?
  • Did you spot a typo?
Please tell us using this form.

See Also

What is Pythagoras' theorem? What is a right triangle?

Page URL

home | about us | contact us | search | privacy policy