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Mathematics 21 Online
OpenStudy (anonymous):

The circumference of a circle is 12 inches. Find its radius and area.

OpenStudy (anonymous):

\[C = 2\pi r\] Can you solve for r?

OpenStudy (anonymous):

no not sure how

OpenStudy (anonymous):

You can divide both sides by 2pi.

OpenStudy (anonymous):

I am trying to figure it out

OpenStudy (anonymous):

It's just like any simple algebra equation with numbers (like you're used to). You're just dealing with letters and symbols. Same rules apply. |dw:1346452428741:dw| Do you see?

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