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Mathematics 9 Online
OpenStudy (anonymous):

help! The circle formed by the blades of a fan has a circumference of eighty-one and five-sevenths inches. What is its diameter? Use twenty-two sevenths for pi.

OpenStudy (ivettef365):

did you try solving it? do you have choices ?

OpenStudy (anonymous):

circumference=2 pi r Diameter=2r

OpenStudy (anonymous):

yea my choices are 12 inch 18inch 21 inch 26inch

OpenStudy (anonymous):

@ivettef365

OpenStudy (ivettef365):

81 5/6 is the same as 81.71 just divide 81.71/3.14 (which is pi)

OpenStudy (anonymous):

26 right?

OpenStudy (ivettef365):

correct

OpenStudy (anonymous):

thanks :D

OpenStudy (ivettef365):

yw :)

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