Kayson is looking at two buildings, building A and building B, at an angle of elevation of 40°. Building A is 120 feet away, and building B is 60 feet away. Which building is taller and by approximately how many feet? Building A; it is around 100. 69 feet taller than building B Building A; it is around 50. 34 feet taller than building B Building B; it is around 100. 69 feet taller than building A Building B; it is around 50. 34 feet taller than building A.