Question

in a right triangle, the length of the hypotenuse is 20 inches and the length of one leg is 15 inches. What is the length of the other leg in inches?

Answer 1

You have to use the formula of Pythagoras

leg (call it AB) = √hypotenuse²-leg₁² = √20²-15² = √400-225 = √175 ≈ 13,22 inches

Answer 2

You can use the pythagorean theorem to solve this. To the nearest tenth, it is 13.23inches because 5 radical 7 is 13.228.