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OpenStudy (anonymous):
A ball has a radius of 1 foot. What is the surface area of the ball?
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OpenStudy (anonymous):
Surface area of a sphere is 4(pi)r^2. 4 * 3.14 * r^2 4 * 3.14 * 1^2 1 * 1 = 1 4 * 3.14 * 1 12.56 * 1 12.56
OpenStudy (anonymous):
ok thnks @TrashMan914
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