Pierre 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 21°. Pierre looks farther down the road and spots a dump truck. He estimates that the car is 600 feet in front of the dump truck. His angle of depression to the dump truck is 14°.

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

approximately 145.2 feet

approximately 288.1 feet

approximately 373.3 feet

approximately 426.8 feet