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Mathematics 21 Online
OpenStudy (anonymous):

Help Please!!! A Japanese flag has a red circle on a white background. If the circle has circumference of 172.7 cm, what is its diameter?

OpenStudy (anonymous):

The radius would be the circumference divided by 2 times pi, so you just need to plug it in.

OpenStudy (anonymous):

The answer will be different depending on how you divide pi. Does your teacher have you use 3.14 or exact pi?

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