Proficient Elizabeth wants to know the angle at which the sun
hits a tree in her backyard at 3 pm. She finds that
the length of the tree's shadow is 24 feet at 3 pm.
At the same time of day, her shadow is 6 feet 5
inches. If Elizabeth is 4 feet 8 inches tall, find the
height of the tree and hence the angle at which the
sunlight hits the tree. Round the angle to the
nearest degree.