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What's the formula for the circumference of a circle?

I feel so stupid. :P
 yappy24 posted sa loob ng isang taon na ang nakalipas
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walang tiyak na layunin Sagot

XxEmolovexX said:
The diameter multiplied sa pamamagitan ng Pi

or

The radius to the 2nd power, multiplied sa pamamagitan ng pi.
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posted sa loob ng isang taon na ang nakalipas 
polarwagon15 said:
-pinkie * r squared
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 -pinkie * r squared
posted sa loob ng isang taon na ang nakalipas 
ErnieHannah333 said:
2πr or πd
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CielXlizzy19 said:
Pi r², I think....I haven't done this kind of math in a while....>.>
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jnrm said:

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