Question

The bottom of a ladder must be placed 5 feet from the wall. The ladder is 12 feet long. How far above the ground does the ladder touch the wall?

Answer 1

10.91 feet to the nearest hundredth..

Explanation:

Using the Pythagoras theorem

d^2 = 12^2 - 5^2

d^2 = 119

d = √119 = 10.91 ft.