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Mathematics 21 Online
OpenStudy (anonymous):

Click on to see the example

OpenStudy (anonymous):

|dw:1330557576803:dw| the circumference is 20 inches. use pi

sam (.sam.):

\[2\pi(r)=20\] \[r=\frac{20}{2\pi}\] \[r=\frac{10}{\pi}=3.183\]

OpenStudy (anonymous):

how do u get 3.185

OpenStudy (anonymous):

Different types of calculator will give different round off result!

OpenStudy (anonymous):

is it 40

OpenStudy (anonymous):

I'm just explain the result from calculator, but I'm unsure your question about 40?

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