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OpenStudy (anonymous):
Which of the following is the best estimate of the circumference of a circle that has a diameter of 7 feet? 11 ft 14 ft 42 ft 21 ft
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OpenStudy (anonymous):
C=pi *R^2 plug it in
OpenStudy (anonymous):
21 ft
OpenStudy (madhu.mukherjee.946):
no c=2pi*r
OpenStudy (madhu.mukherjee.946):
21.98=22 ft
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OpenStudy (anonymous):
ok
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