document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=293271>Question 293271</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the radius of a tennis ball with a surface area of 28 in.²? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #211721 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=211721\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What is the radius of a tennis ball with a surface area of 28 in.²?<BR>\n" );
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document.write( "Area = 4(pi)r^2<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Solve for \"r\":<BR>\n" );
document.write( "4(pi)r^2 = 28<BR>\n" );
document.write( "r^2 = 7/(pi)<BR>\n" );
document.write( "r = sqrt[7/pi]<BR>\n" );
document.write( "---<BR>\n" );
document.write( "r = 1.4927 in<BR>\n" );
document.write( "================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );