# geometry

a 20 meter long cable is used to support a telephone pole holding it perpendicular to the ground. If the cable forms a 60grados angle with the ground how long mhigh up the pole should the cable be attached?

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1. the cable is the hypotenuse of the right triangle formed by the cable, pole and ground.

(height of attachment) / (cable length) = sin(60º)

h / 20 m = √3 / 2

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2. 10✅3

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