Pythagorean Theorem Calculator

Solve for the hypotenuse from the two legs using the Pythagorean theorem.

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Hypotenuse c10.0000units
c squared100.00units²

The Pythagorean theorem states a² + b² = c², so the hypotenuse c = √(a² + b²). With a = 6 and b = 8: c = √(36 + 64) = √100 = 10.

Questions

What is the Pythagorean theorem?
For a right triangle, the square of the hypotenuse equals the sum of the squares of the other two sides: a² + b² = c². So c = √(a² + b²).