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7-41.

A ‑foot long cable is attached feet up the side of a building. If it is pulled taut (i.e., there is no slack) and staked to the ground as far away from the building as possible, approximately what angle does the cable make with the ground?

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Right triangle, hypotenuse labeled, 100, vertical leg labeled, 70, angle opposite vertical leg, labeled with 1 tick mark.