question_answer

A tower subtends an angle of\[~\text{3}0{}^\circ \]at a point on the same level as the foot of the tower. At a second point h m above the first, the depression of the foot of the tower is 60°. What is the horizontal distance of the tower from the point?

A) \[\text{h cot 6}0{}^\circ \]           

B)        \[\text{h cot 3}0{}^\circ \]

C) \[\frac{h}{2}\text{cot 6}0{}^\circ \]         

D)        \[\frac{h}{2}\text{cot 3}0{}^\circ \]