The Pythagorean Theorem

“In a right triangle, the sum of the squares of the legs is equal to the square of the hypotenuse.”

Legs – the two shorter sides of a right triangle.

Hypotenuse – the longer side of a right triangle

We’ll call the LEGS“a” and “b”, and the HYPOTENUSE“c”.

Note:  The hypotenuse, c, is always the longest side.


a² + b²  = c²


A right triangle is a triangle which has an angle that is 90 degrees.

PY01  find the hypotenuse

PY02 find the hypotenuse

PY03 find the length of leg