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A rain gutter is to be constructed of aluminum sheets of 12 inches wide. After marking off a length of 4 inches from each edge, this length is bent up at an angle 0. The area of the opening may be expressed
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A rain gutter is to be constructed of aluminum sheets of 12 inches wide. After marking off a length of 4 inches from each edge, this length is bent up at an angle 0. The area of the opening may be expressed as the function A0= 16 sin0(cos0+1) if 0=30 what is the area of the opening?

User Samuel Poirier
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plug in O = 30:-

AO = 16 * sin30*(cos 30+1) = 14.93 in^2
User Josh Metcalfe
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