Q vertical pole and a tower are on the same level Ground.from the top of the pole angle of elevation of the top of the tower is 60 degree and the angle of depression od foot of the tower is 30 degree.find the height of the tower if the height of the pole is 20 meter

Answer 1

as usual, draw a diagram. The tower's height is

20 + 20 cot30° * tan60°
= 20(1+tan^2 60°)
= 20 sec^2 60°
= 20 * 4
= 80