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      Question

      The angle of elevation of the top of an unfinished

      pillar at a point 150 metres from its base is 30°. The height (in metres) that the pillar must be raised so that its angle of elevation at the same point may be 45°, is (takeing √3 = 1.732)
      A 63.4 Correct Answer Incorrect Answer
      B 86.6 Correct Answer Incorrect Answer
      C 126.8 Correct Answer Incorrect Answer
      D 173.2 Correct Answer Incorrect Answer

      Solution

      The correct answer is A

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