document.write( "Question 539405: What is the circumference of the circle whose equation is given: x^2 + y^2 = 9 \n" ); document.write( "
Algebra.Com's Answer #353423 by KMST(5328)\"\" \"About 
You can put this solution on YOUR website!
That's \"+x%5E2+%2B+y%5E2+=+3%5E2\", the equation of a circle of radius 3. It's centered at (0,0), but that does not matter.
\n" ); document.write( "\"circumference+=+2%2Api%2Aradius\"
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