The angle of elevation of the top of a tower from a certain point is 300. If the observer moves 20 m toward the tower, the angle of elevation of the top of the tower increases by 150. The high of the tower is: - Study24x7
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The angle of elevation of the top of a tower from a certain point is 300. If the observer moves 20 m toward the tower, the angle of elevation of the top of the tower increases by 150. The high of the tower is:

A

17.3 m

B

21.9 m

C

27.3 m

D

30 m

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