Pythagorean Theorem Calculator

Enter 2 out of 3 to solve for the missing side or all 3 for the pythagorean proof:
<--- Side 1
<--- Side 2
<--- Hypotenuse

Given a right triangle with a side length of 3 and a side length of 4, calculate the Hypotenuse:

The Pythagorean Theorem is shown below:
Side12 + Side22 = Hypotenuse2
This is also written as a2 + b2 = c2 where c is the hypotenuse.

Solving for Hypotenuse by taking the square root of both sides, we get:
Hypotenuse = √Side 12 + Side 22 or c = √a2 + b2

Plugging in our Side 1 and Side 2, we get
Hypotenuse = √32 + 42
Hypotenuse = √9 + 16
Hypotenuse = √25
Hypotenuse = 5