Question

A 12ft ladder leans against the side of a house. The bottom of the ladder is 6ft from the side of the house. How high is the top of the ladder from the ground?

Answer 1

${6}^{2} + (x)^{2} = {12}^{2}$
36 + x = 144
144-36= 108
square root of 108 is, around 10.4