Question

A 15 foot ladder is leaning against a house. How far is the top of the ladder from the ground if the ladder is 12 feet away from the house?

Answer 1

9 feet

Explanation:

Use the Pythagorean Theorem:

`{x}^(2) + {12}^(2) = {15}^(2)`

`{x}^(2) + 144 = 225`

`{x}^(2) = 81`

`x = 9`