Jay is 120 meters from the base of a building and Mary is 40 meters from the base of the building. Jay's angle of elevation when looking at the top of the building is X and Mary's is 2X. What is the height of the building?
tangent=opposite/adjacent, H=height of building
find the square root of 1/3
square root of 1/3=0.57735
tan of what angle is 0.57735 from the table of tangents ?
the angle x=30 degrees