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Mathematics 7 Online
OpenStudy (anonymous):

A board leans against the side of a house and makes an angle of 70° with the ground at a point 6 feet from the base of the house. How long is the board? Round your answer to the nearest tenth of a foot.

OpenStudy (curry):

2 ft

OpenStudy (anonymous):

Setup the problem: tan(70) = x/6 6tan(70)=x x=16.5ft

OpenStudy (anonymous):

2ft would be a very low angle.

OpenStudy (curry):

wait it wouldn't be tan

OpenStudy (curry):

it would be cos

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