Pythagorean Theorem Calculator
Solve a right triangle with a² + b² = c².
c =
5
Find the missing side of a right triangle using the Pythagorean theorem.
How to use
- Choose which side to solve for.
- Enter the two known sides.
- Read the result.
Frequently asked questions
- What is the hypotenuse?
- The longest side of a right triangle, opposite the right angle.
- Why an error for a leg?
- A leg can only be found if the hypotenuse (c) is longer than the known leg.