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OpenStudy (anonymous):
What is the area of a circle with circumference of 9.42 inches? (Use 3.14 for p.)
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OpenStudy (cggurumanjunath):
a=pi*r^2 c=2*pi*r=9.42
OpenStudy (cggurumanjunath):
pi*r=9.42/2
OpenStudy (cggurumanjunath):
r=9.42/(2*pi)
OpenStudy (cggurumanjunath):
substitute above r in a=pi*r^2
OpenStudy (anonymous):
its 9.42
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