document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=152571>Question 152571</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many 1/2 inch square tiles to cover a ball 9 inches in diameter?\r<BR>\n" );
document.write( "\n" );
document.write( "Thanks I can't find my formula book and I am 79 years old.  (retired aerospace engineer) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #112152 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=112152\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 4(pi)r^2 is the surface area of a sphere\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "4(pi)(4.5)^2=254.469 (approx)\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "(1/2 in)^2=.25 in^2\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "254.5/.25=1018 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );