document.write( "Question 81151: i need to know circumference of the cicle of r=3 cm. \n" ); document.write( "
Algebra.Com's Answer #58175 by tutor_paul(519)\"\" \"About 
You can put this solution on YOUR website!
Circumference of a circle = 2*pi*r
\n" ); document.write( "pi is a constant and you can use 3.14 for it's value in this case.
\n" ); document.write( "So,
\n" ); document.write( "\"C=2%283.14%29%283%29\"
\n" ); document.write( "C=18.84cm
\n" ); document.write( "Good Luck,
\n" ); document.write( "tutor_paul@yahoo.com
\n" ); document.write( "
\n" );