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Mathematics 8 Online
OpenStudy (anonymous):

The size of a bicycle is determined by the diameter of the wheel. You want a 21 in bicycle for your birthday. What is the area of one of the wheels?

OpenStudy (anonymous):

find the perimeter (circumference) of circle O. then x 93/360 = L of arc (as a "sniff" test, it will be slightly less than one-fourth, i e 90/360)

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