Muhindo S.
asked • 09/28/17The cost of manufacturing a semi-circular window is the cost of the glass pane together with the cost of the framing material.
Determine the total length of frame needed for a window with a base length of 4 feet. Round your answer to the nearest hundredth of a foot.
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1 Expert Answer
Kenneth S. answered • 09/29/17
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Expert Help in Algebra/Trig/(Pre)calculus to Guarantee Success in 2018
SEMICIRCULAR, so base length 4 means radius 2 ft.
Frame length is ½ of circumference PLUS base length of 4.
Frame length = ½(2pi)(r) + 4 =2pi + 4 = 10.28318... so the rounded answer is 10.28 ft.
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Mark M.
09/28/17