Pythagorean theorem — find a leg

Pythagorean theorem — find a leg

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Compute the missing leg a of the right triangle.

In the right triangle the hypotenuse is c = 5 cm and one leg is b = 3 cm. What is the other leg a?

cm

What does the generator do?

The generator picks one of the Pythagorean triples (3, 4, 5), (5, 12, 13), (6, 8, 10), (8, 15, 17), (9, 12, 15) and shows you the hypotenuse together with one leg. The other leg is always a whole number.

How to solve

Square the hypotenuse, subtract the square of the known leg, then take the square root of the result. With Pythagorean triples the answer is a whole number.

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