document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1173910>Question 1173910</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the radius of a circle with an area of 144 pi?<BR>\n" );
document.write( "The correct answer is 12 but I want to understand step by step of the formulas of how that is the correct answer please. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #799230 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=799230\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> area is π*r^2<BR>\n" );
document.write( "so 144π=π*r^2<BR>\n" );
document.write( "divide by π both sides<BR>\n" );
document.write( "144=r^2<BR>\n" );
document.write( "take the square root of both sides<BR>\n" );
document.write( "r=12\r<BR>\n" );
document.write( "\n" );
document.write( "it's easier leaving it in π<BR>\n" );
document.write( "but if you multiply by 3.14, the area is 452.16<BR>\n" );
document.write( "if you divide that by 3.14, you get 144. It takes you right back to where you started.<BR>\n" );
document.write( "Many times, you don't need to convert π to an estimate. Just leave it as π, and when you divide, it disappears. </SPAN>\n" );
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