change_historyMath Tools
Pythagorean Calculator
Find the missing side of a right triangle using a² + b² = c².
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Side A
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Side B
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Hypotenuse
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Area
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Perimeter
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Find the missing side of a right triangle using a² + b² = c².
Solve for any side of a right triangle given the other two. Enter two known values (any combination of the two legs or one leg and the hypotenuse) to calculate the missing side using the Pythagorean theorem. Shows the formula and working alongside the result. Useful for geometry, construction, and trigonometry problems.