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OpenStudy (anonymous):
Find the area of a circle with a diameter of 7 inches.
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OpenStudy (divanshu):
find radius and then use pie*radius^2
OpenStudy (anonymous):
\[A = \pi r^2 = \pi (7/2)^2 = 49\pi / 4\]
OpenStudy (anonymous):
R = D/2, so R = D/2 :)
OpenStudy (anonymous):
38.48in^2?
OpenStudy (anonymous):
yes! ^_^
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