Question

A 15-foot ladder is leaning against a building with the base of the ladder 4 feet from the building. How high on the building the top of the ladder will reach?

Answer 1

14.46ft

Explanation:

this would be solved using Pythagoras

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c = hypotenuse

15^2 - 4^2

225 - 16 = 209

the square root = 14.46