a wheelchair ramp will rise a total of 2.5' and form a 3 degree angel with the ground. how far from the base of the building should the wheelchair ramp start?
tan (3°) = (2.5) / D where D is the distance from the bottom of the ramp to the building
Rearrange as
D = (2.5) / tan(3°) = about 47.7 feet
