Question

A 17- foot ladder is placed against a vertical wall of a building with the bottom of the ladder standing on level ground 11 feet from the base of the building. How high up the wall does the ladder reach

Answer 1

y=
`√(168)` or about 12.96 ft

Explanation:

11^2+y^2=17^2

y^2=168

y=
`√(168)` or about 12.96 ft