Question

A cyclist rode 15 miles south and 20 miles west. If she takes a diagonal route

back to her starting point, how many mile will she have to travel?

Answer 1

25 miles

Explanation:

you can use the Pythagorean Theorem and let the legs be 15 and 20, the diagonal (c) is the hypotenuse

15² + 20² = c²

225 + 400 = c²

625 = c²

c =
`√(625)` = 25