document.write( "Question 260034: A circle that has a surface area of 225......what is the circumference? \n" ); document.write( "
Algebra.Com's Answer #191473 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! A=pi*r^2=225 \n" ); document.write( "r^2=225/pi \n" ); document.write( "r=sqrt(225/pi) \n" ); document.write( "2*pi*r=C \n" ); document.write( "2*pi*sqrt(225/pi) \n" ); document.write( "2*pi*15*sqrt(1/pi) \n" ); document.write( "30*sqrt(pi^2/pi) \n" ); document.write( "30*sqrt(pi) \n" ); document.write( " |