Question

A 12-foot ladder is placed

against a house. The base of the
ladder is 9 feet from the house.
How high up the house does the
ladder reach?

Answer 1

7.94 ft to nearest hundredth.

Explanation:

By Pythagoras:

h^2 = 12^2 - 9^2

h^2 = 63

h = 7.94 ft.