Question

From a balloon 915 feet high, the angle of depression to the ranger headquarters is 85°14'. How far is the headquarters from a point on the ground directly below the balloon (to the nearest foot)?

Answer 1

66ft right?

Answer 2

im not good with angle of depression and elevation sorry

Answer 3

i think its 76 ft as at the drown triangle for the case we get the needed distance =(915)/(tan85)

Answer 4

I got 76 ft as well, 915/(tan(85+14/60))