document.write( "Question 728152: the equation for a circle is x^2+y^2=169 what is the radius \n" ); document.write( "
Algebra.Com's Answer #445319 by Alan3354(69443)\"\" \"About 
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the equation for a circle is x^2+y^2=169 what is the radius
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\n" ); document.write( "It's x^2 + y^2 = r^2
\n" ); document.write( "r^2 = 169
\n" ); document.write( "r = 13
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