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Mathematics, 25.08.2019 10:20 nook4boo

An escalator lifts people to the second floor of a building, 21 ft above the first floor. the escalator rises at a 30 degree angle. to the nearest foot, how far dies a person travel from the bottom to the top of the escalator?

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An escalator lifts people to the second floor of a building, 21 ft above the first floor. the escala...
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