The law of cosines and pythagoras theorem

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Question: A building 270 feet tall casts a ninety foot long shadow. If a person looks down from the top of the building, compute the measure of the angle between the end of the shadow and the vertical side of the building? (Suppose the person's eyes are level with the top of the building.)

[A] 18°
[B] 72°
[C] 71°
[D] 19°

Reference no: EM1315359

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