document.write( "Question 19899: Find the area of a circle whose circumference is 18pi diameter. \n" ); document.write( "
Algebra.Com's Answer #9592 by vidyamanohar(13)\"\" \"About 
You can put this solution on YOUR website!
circumference=pi x diameter =18pi
\n" ); document.write( "so, diameter = 18
\n" ); document.write( "the radius is half the diameter, so, radius =9\r
\n" ); document.write( "\n" ); document.write( "Area of the circle= pi(radius)^2=pi(9)^2=81 pi
\n" ); document.write( "
\n" );