document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=150874>Question 150874</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0809223821/algebrahomeworkh>number power</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> A patio in the shape of a half circle and is 4 inches thick is being built. The radius is 12 feet.<BR>\n" );
document.write( "To the nearest cubic yard, how much concrete will be needed?<BR>\n" );
document.write( "How did they come up with 3 cubic yds of concrete?<BR>\n" );
document.write( "Could you please explain this for me, I am so lost. I am so grateful for any help.<BR>\n" );
document.write( "Thank-You </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #110783 by </B><A HREF=/tutors/aboutme.mpl?userid=vleith><B>vleith(2983)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vleith><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=110783\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> volume for a cylinder is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V=+pi%2Ar%5E2%2Ah ALIGN=MIDDLE  ALT=\"V=+pi%2Ar%5E2%2Ah\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Think of a cylinder as a whole bunch of circles stacked on top of each other. So the Volume is just the area of each thin circle times the height of the stack.\r<BR>\n" );
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document.write( "In this case, the shape is only a half circle. So the formula we need is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V+=+%28%28pi%2Ar%5E2%29%2F2%29%2Ah ALIGN=MIDDLE  ALT=\"V+=+%28%28pi%2Ar%5E2%29%2F2%29%2Ah\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Our radius is 12 feet. Our height is 1/3 foot. And the answer is in cubic yards. <BR>\n" );
document.write( "So we will need to convert everything to yards<BR>\n" );
document.write( "12 feet = 4 yards<BR>\n" );
document.write( "4 inches = 1/9 yard<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V+=+%28%28pi%2A4%5E2%29%2F2%29%2A%281%2F9%29 ALIGN=MIDDLE  ALT=\"V+=+%28%28pi%2A4%5E2%29%2F2%29%2A%281%2F9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V+=+%28%28pi%2A16%29%2F2%29%2A%281%2F9%29 ALIGN=MIDDLE  ALT=\"V+=+%28%28pi%2A16%29%2F2%29%2A%281%2F9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V+=+%28%28pi%2A16%29%2F18%29 ALIGN=MIDDLE  ALT=\"V+=+%28%28pi%2A16%29%2F18%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V+=+2.79 ALIGN=MIDDLE  ALT=\"V+=+2.79\"   DISABLED_style= \"max-width:90%; height:auto;\" > cubic yards<BR>\n" );
document.write( "Concrete folks sell by the \"full yard\", so you need 3 yards </SPAN>\n" );
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