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The surface area of a sphere varies directly with the square of its radius. If the surface area of a sphere with a radiu
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The surface area of a sphere varies directly with the square of its radius. If the surface area of a sphere with a radiu
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Question 414190: I have no idea what this is saying.
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The surface area of a sphere varies directly with the square of its radius. If the surface area of a sphere with a radius of 12 inches is 576π square inches, find the surface area of a sphere with a radius of 3 inches. Answer by sudhanshu_kmr(1152) (Show Source):
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As the surface area varies directly with the square of its radius....
12^2 =144, 3^2 = 9
if square of radius = 144 then area = 576π
it means, if square of radius = 1 then area = 576π/144
now, we have to find the area if square of radius is 9
