Question

9. A 25-ft ladder leans against a building so that the angle between the ground and the

ladder is 70°. How high does the ladder reach up the side of the building?

Answer 1

23.49 feet

Explanation:

Sin(70)/x = Sin(90)/25

Sin(90) = 1

Sin(70)/x = 1/25

Cross multiply

Sin(70) * 25 = x

23.49 = x