The foot of a ladder is 1.3m from a fence that is 1.8m high. The ladder touches the fence and rests against a building that is 1.8m behind the fence. What is the height on the building reached by the top of the ladder?

The foot of a ladder is 13m from a fence that is 18m high The ladder touches the fence and rests against a building that is 18m behind the fence What is the hei class=