Weegy: A forest ranger spots a fire from a 21-foot tower. [ The angle of depression from the tower to the fire is 12 degrees.
The angle of depression looking from the tower is the same as the angle
of elevation looking at the top of the tower from the spot of the fire.
- - - - -
So, tan(12 degrees)= 21/distance between tower and fire
distance = 21/tan(12) = 98.8 ft