Pythagoras' Theorem Summary

Pythagoras' Theorem

Summary

the theorem of pythagoras is an equation connecting the longest side of a right-angled triangle (called the hypotenuse) with the other two sides.

it can be used to find the length of one side of a right-angled triangle given the other two sides.

it applies only to right-angled triangles.

Key Skills
  • find the longest side of a right-angled triangle given the two short sides
  • find the length of one of the short sides given the other two sides
  • use pythagoras' theorem to solve problems, including those involving cuboids and pyramids

Vocabulary

pythagoras' theorem, right angle, hypotenuse, pythagorean triple.