Sonny lives in a tall apartment building. He looks out his window and spots a car on the road that runs straight toward his building. His angle of depression to the car is 19°. Sonny looks farther down the road and spots a dump truck. He estimates that the car is 1000 feet in front of the dump truck. His angle of depression to the dump truck is 9°.

How far above the ground is Sonny's line of sight?