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3 November, 16:33

A 100 m cable is stretched from the ground to the top of a pole. If the angle of the cable with the ground is 10 degrees, how high is the pole?

A. 17.4 m

B. 90 m

C. 98.5 m

D. 110 m

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Answers (1)
  1. 3 November, 18:53
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    Imagine a right angle triangle with the diagonal side being 100m long. Since the angle between the ground and cable is 10 degrees, sin 10 = pole/cable.

    Pole length = 17.36m

    Answer is A, 17.4m.
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