Pythagorean theorem
Enter the two known side lengths.
Result
With legs 3 and 4 the hypotenuse is 5.
Example
Find the missing side of a right triangle with the Pythagorean theorem.
With legs 3 and 4 the hypotenuse is 5.
Processed locally in your browser.
Methodology
c² = a² + b² for a right triangle.
Related tools