Enter two sides – the third one is calculated.

Hypotenuse c

5

5

With legs a = 3 and b = 4, the hypotenuse is c = 5.

a = 3a² = 9b = 4b² = 16c = 5c² = 25abc
How this was calculated
c = √(a² + b²) = √(3² + 4²)
c = √(9 + 16) = √25 = 5

Pythagorean theorem: in a right triangle, the square on the hypotenuse (the side opposite the right angle) has the same area as the two squares on the legs combined.

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