document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=838433>Question 838433</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm building a kiln. How many 4\"x8\" bricks are needed to build the pit, size 8' in diameter by 4' high? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #505132 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=505132\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I'm building a kiln. How many 4\"x8\" bricks are needed to build the pit, size 8' in diameter by 4' high?<BR>\n" );
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document.write( "You can calculate the area.<BR>\n" );
document.write( "For the bottom, it's {{pi*r^2 = 16pi}}} sq ft<BR>\n" );
document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=144%2A16%2Api ALIGN=MIDDLE  ALT=\"144%2A16%2Api\"   DISABLED_style= \"max-width:90%; height:auto;\" > sq inches<BR>\n" );
document.write( "Each brick is 32 sq inches<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=144%2A16%2Api%2F32 ALIGN=MIDDLE  ALT=\"144%2A16%2Api%2F32\"   DISABLED_style= \"max-width:90%; height:auto;\" > =~ 226.2 bricks on the bottom<BR>\n" );
document.write( "but you have to take into account that they can't all fit into a circular area.<BR>\n" );
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document.write( "For the sides:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Area+=+pi%2Ad%2Ah+=+pi%2A96%2A48+=+4608pi ALIGN=MIDDLE  ALT=\"Area+=+pi%2Ad%2Ah+=+pi%2A96%2A48+=+4608pi\"   DISABLED_style= \"max-width:90%; height:auto;\" > sq inches<BR>\n" );
document.write( "You only gave 2 dimensions for the bricks.  If the 4 by 8 faces from the sides, then you need 4608*pi/32 bricks<BR>\n" );
document.write( "=~ 452.4 bricks<BR>\n" );
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document.write( "If this is for actual construction, get a few extra. </SPAN>\n" );
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