Pythagorean Theorem Calculator
Apply a² + b² = c²: find the hypotenuse or a missing leg of a right triangle.
About the Pythagorean Theorem Calculator
In a right triangle, the square of the hypotenuse equals the sum of the squares of the legs: a² + b² = c². The 3-4-5 triangle is the classic integer case (9 + 16 = 25).