A flagpole is placed at the top of a tower. The angles of elevation of the bottom and top of the flagpole from a point on the ground 10m away are 40° and 50° respectively. Find the length of the flagpole.
A.
1.8m
B.
3.5m
C.
8.4m
D.
11.9m
E.
17.3m
Correct Answer: Option B
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