document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=213076>Question 213076</A>: <I><SPAN STYLE=\"word-break: break-all;\"> i have 4 circle all have a radius of 10' they all are touching each other in a square patern what is the square feet of the space in the center of the 4 circles </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #160969 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=160969\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  i have 4 circle all have a radius of 10' they all are touching each other in a square patern what is the square feet of the space in the center of the 4 circles<BR>\n" );
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document.write( "Connecting the 4 centers of the circles will form a square 20' on a side.<BR>\n" );
document.write( "Each of the circles has 1/4 of its area inside the square.  The four quarters of the circles are the same area as one of the circles, = pi*r^2.<BR>\n" );
document.write( "The area of the square is 400 sq feet.<BR>\n" );
document.write( "The space outside the 1/4 circles is 400 - pi*r^2<BR>\n" );
document.write( "= 400 - 100*pi<BR>\n" );
document.write( "= ~ 85.84 sq feet<BR>\n" );
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