A communications tower is located at the top of a steep hill, as shown. The angle of inclination of the hill is 77º. A guy wire is to be attached to the top of the tower and to the ground, 153 m downhill from the base of the tower. The angle formed by the guy wire is 11°. Find the length of the cable required for the guy wire. 77° 11° 153 m NOTE: The picture is NOT drawn to scale. length of guy-wire = m

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