Question

Find the length of the third side. If necessary, round to the nearest tenth

Answer 1

25

Explanation:

By the Pythagorean Theorem, the sum of the squares of the leg lengths is equal to the square of the hypotenuse:

`a^2+b^2=c^2\\20^2+15^2=c^2\\400+225=c^2\\625=c^2\\25=c`

Hence, the hypotenuse has a length of 25