Geometry & Trigonometry
Basic

Pythagorean Theorem

Relates the sides of a right triangle.

Formula

a2+b2=c2a^2 + b^2 = c^2

Variables

a, bLegs
cHypotenuse

Example

3² + 4² = 5²

Did You Know?

There are over 350 published proofs of the Pythagorean theorem — including one by US President James Garfield.

triangleright anglegeometry