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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?

A17.4 m
B90 m
C98.5 m
D110 m

Verified Answer :

jiayangchang

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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