Mathematics

Nicolas Arias

25 June, 22:24

A stairway must be built to a deck that is 20 feet above ground level. To the nearest half foot, how far from the base of the deck, on ground level, should the beginning of the stairway be placed so that the stairway forms a 60° angle from the ground?

A. 11 ft

B. 11.5 ft

C. 35 ft

D. 12 ft

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