Asked by rylee

i don't get how to do circumference
Answered by Reiny
the Circumference of a circle = Pi(diameter)
or
C = 2(pi)r

e.g. a circle of radius 5 cm has a circumference of
10pi or appr. 31.416 cm
Answered by DrBob222
Memorize the formula.
pi*diameter = circumference of a circle.
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