Question

Two joggers run 8 miles north and then 5 miles west. What is the shortest distance back to their starting point to the nearest tenth of a mile?

Answer 1

9.4 miles to the nearest tenth.

Explanation:

This run forms a right angled triangle with legs of 5 and 8 miles.

By Pythagoras:

x^2 = 8^2 + 5^2

x = √(64+25) = √89

x = 9.434 miles

Answer 2

9.4 miles approx.

Explanation: