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OpenStudy (friendzone):
56.52 square inches 254.34 square inches 28.26 square inches 1017.36 square inches
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OpenStudy (friendzone):
OpenStudy (saeedd):
so its 3.14 x r^2
OpenStudy (saeedd):
r is 9, so r^2 is 81
OpenStudy (saeedd):
then 82 times pi (3.14) is???
OpenStudy (friendzone):
is the same thing as the last the same notes
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OpenStudy (mazmaz):
B because area of a circle is pi*r^2
OpenStudy (saeedd):
it comes to 257.48, which is close to B
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