Calxsolver
Trigonometry

Pythagorean Theorem

The Pythagorean theorem relates the sides of a right triangle: a² + b² = c², where c is the hypotenuse. Enter any two sides and leave the third blank; the calculator solves for the missing one and shows the working.

Pythagorean Theorem

Find the missing side of a right triangle.

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Frequently asked questions

How do I use the calculator?

Enter the two sides you know and leave the unknown field blank. The solver fills in the missing side.

Can it find a leg, not just the hypotenuse?

Yes. If you know the hypotenuse and one leg, it computes the other leg as √(c² − leg²).

Why must the hypotenuse be the longest side?

In a right triangle the hypotenuse is always opposite the right angle and is longer than either leg.

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