Pythagorean theorem
Calculate the hypotenuse or a leg of a right triangle.
Enter two sides and leave the one you want to find empty.
Result: Hypotenuse
5
Formula: √(3² + 4²) = 5
How to use it
Choose the side to calculate. For the hypotenuse, enter both legs; for a leg, enter the hypotenuse and the known leg.
Example
With legs of 3 and 4, the hypotenuse is 5. With a hypotenuse of 5 and a leg of 3, the other leg is 4.