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? A. 12 m B. 10 m C. 8 m D. 6 m Answer Workspace Report Discuss Answer with explanation Answer: Option B Explanation 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 Workspace
ADB = 30°, 
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