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2pi9 in exact form

 Jun 4, 2014

Best Answer 

 #1
avatar+118723 
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$$2\times \pi\times 9=18\pi$$

.
 Jun 4, 2014
 #1
avatar+118723 
+10
Best Answer

$$2\times \pi\times 9=18\pi$$

Melody Jun 4, 2014

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