Question

Matt bought an outdoor wall light fixture. The fixture has semicircular ends at the top and bottom as shown. The side of the fixture that faces the wall is open.



What is the exterior surface area of the light fixture?
Answer
44π in2
56 in2
72π in2
105π in2

Answer 1

72π in^2
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Exterior Surface Area of the "Half Cylinder" = 1/2 * 2 pi (4) (14) + pi (4)^2
ESA = 56 pi + 16 pi
ESA = 72 pi square inches

Answer 2

thanks