A ladder 17 feet long leans against the side of a house.Find the height from the top of the ladder to the ground if the angle of elevation of the ladder is 80º.Approximate the answer to one decimal place.
A)19.7 ft
B)20.7 ft
C)18.7 ft
D)16.7 ft
E)17.7 ft

Question

A ladder 17 feet long leans against the side of a house.Find the height from the top of the ladder to the ground if the angle of elevation of the ladder is 80º.Approximate the answer to one decimal place. ​
A)19.7 ft
B)20.7 ft
C)18.7 ft
D)16.7 ft
E)17.7 ft

Quizplus · Accepted Answer

The height can be found using the cosine of the angle of elevation: height = 17 * cos(80º). Calculating this gives approximately 16.7 ft.

A Ladder 17 Feet Long Leans Against the Side of a House.Find