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Work out the circumferance of the circle, using pie as 3.14, and radius as 3cm

2 Answers

4 votes
C=2πr in this case and using the approximation...

C=2(3.14)3=18.84cm (note 22/7 is a much better approximation and is just as easy to use :))
User Sami Kuhmonen
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4 votes
The Circumference of a circle is 2PiR or PiD.
3.14 x 3 x 2
3.14 x 6
18.84 is your answer.

User Fidd
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