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

An escalator lifts people to the second floor of a building 21 ft above the first floor The escalator rises at a 30 angle To the nearest foot how far does a per class=

Respuesta :

ekai

Answer:

42

Step-by-step explanation:

Sin 30=21/H

H=21/sin 30

H= 42

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