The top of a 15 metre high tower makes an angle of elevation of 60° with the bottom of an electronic pole and angle of elevation of 30° with the top of the pole. What is the height of the electric pole?
Answer with explanationAnswer: Option B
Consider the diagram shown above. AC represents the tower and DE represents the pole.
Given that AC = 15 m, ADB = 30°, AEC = 60°
Let DE = h
Then, BC = DE = h,
AB = (15-h) (∵ AC=15 and BC = h),
BD = CE
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