A cadet rappelling down a cliff on a rope needs help. A cadet on the ground pulls tight

Chapter 5, Problem 21

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ROTC A cadet rappelling down a cliff on a rope needs help. A cadet on the ground pulls tight on the end of the rope that hangs down from the rappelling cadet to lock the cadet in place. The length of the rope between the two cadets is 120 feet, and the angle of elevation of the rope is \(66^\circ\). The cadet on the ground is holding the rope at a height of 4 feet. How high above the ground is the cadet on the rope?

Text Transcription:

66^o

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