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      Question

      The angle of elevation of a ladder leaning against a

      wall is 60°  and the foot of the ladder is 5 m away from the wall. The length of the ladder
      A 15 m Correct Answer Incorrect Answer
      B 10m Correct Answer Incorrect Answer
      C 11m Correct Answer Incorrect Answer
      D 16m Correct Answer Incorrect Answer

      Solution

      Let the length of the ladder =AC Cos 60° =AC/5 1/ 2 = AC/5 AC =10 meter.

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