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Q: The angle of elevation of the top of an unfinished tower at a point distant 78m from base is 30°. How much higher must the tower be raised (in m) so that the angle of elevation of the top of the finished tower at the same point will be 60°?
  • A. 80
  • B.
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  • C.
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  • D.
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Correct Answer: Option D -
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Explanations:

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