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OpenStudy (anonymous):
What is the area of a circle with radius 7.5?
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OpenStudy (anonymous):
\[\pi r^2\]
OpenStudy (anonymous):
\[625\pi \div4\]
OpenStudy (anonymous):
pi*r^2 7.5^2=56.25 pi*56.25=176.7144
OpenStudy (anonymous):
area = πr^2 = 3.14 * (7.5)^2 = 3.14*56.25 = 176.63 if u use π = 22/7, then area = πr^2 = (22/7)*(7.5)^2 = (22/7)*56.25 = 176.79
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