Question 83608
The scenario forms a right triangle whose base is 50 ft and the angle of inclination is 66 degree.

In this case, tan 66 = opp/adj

                     = ht of antenna/base

            2.246 = ht of antenna/50

           Ht of antenna = 50 x 2.246

                         = 112.3


                        = 112 ft