Question

a 28ft ladder leans against a building it reaches the base of a window that is 20 ft high. how far is the base of the ladder from the base of the bulding

Answer 1

19.596 feet

Explanation:

Use the pythagorean theorem.

a^2 + b^2 = c^2

a = 20ft

c = 28ft

400 + b^2 = 784

b^2 = 384

b = 19.596