A 12 - ft ladder leans against the side of a house. The bottom of the ladder is 6 ft from the side of the house. How high is the top of the ladder from the ground? If necessary, round your answer to the nearest tenth.

Answer 1

this is the Pythagorean Theorem

the ladder is the hypotenuse of a right triangle

(height)^2 = 12^2 - 6^2

Answer 2

10.4