Pythagorean Theorem Calculator Guide
Use this calculator to find the missing side of a right triangle.
How the Formula Works
For a right-angled triangle, the Pythagorean theorem states that the square of the hypotenuse (the longest side) equals the sum of the squares of the other two sides: a squared plus b squared equals c squared.
Common Uses
Used in geometry coursework, and practically for finding diagonal distances in construction, carpentry, and navigation.
Important Note
Make sure the values you enter describe a right triangle.