6. Kevin got his Barbie kite stuck in tree. He asked Jolin, Zachary and Skylor for help. He claimed it was his sister's kite and she, not Kevin, would cry if the kite was lost forever. Zachary, the bright student that he is, said they should get the
20 ft. ladder from his garage to get Kevin's (oops I mean his sister's) kite down, Zachary couldn't lift the heavy ladder so
he placed the ladder on the ground. Skylor placed the ladder at angle of elevation of 30'. Jolin placed the ladder at an
angle of depression of 60'. How high up the tree will each student reach? Express your answer as an exact answer
(10 pts.)