SOLUTION: how do i do circumferences

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Question 109444This question is from textbook
: how do i do circumferences This question is from textbook

Answer by BurningFlame_marc(77) About Me  (Show Source):
You can put this solution on YOUR website!
Hello!
You only need to remember that c=pi%28r%5E2%29. If you remember that it will be easy for you!