# How do you use Pythagorean Theorem to find the length, h, of the hypotenuse of a right triangle with legs of lengths, 20 cm. and 15 cm?

$h = 25$
Using Pythagorean theorem, we know ${h}^{2} = {b}^{2} + {p}^{2} \mathmr{and} {h}^{2} = {20}^{2} + {15}^{2} \mathmr{and} h = \sqrt{400 + 225} = 25$[Ans]