To estimate the height of a building, two students find the angle of elevation from

To estimate the height of a building, two students find the angle of elevation from a point (at ground level) down the street from the building to the top of the building is 35∘. From a point that is 150 feet closer to the building, the angle of elevation (at ground level) to the top of the building is 51∘. Assume that the street is level. What is the height of the building?