document.write( "Question 443902: I'm not sure how to solve. It asks \"What is the circumference of a circle with the equation x^2 + y^2=81?\" \n" ); document.write( "
Algebra.Com's Answer #306166 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
the radius (squared) is in the equation ___ use it (with pi) to find the circumference \n" ); document.write( "
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