document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=149168>Question 149168</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2. The Great Pyramid at Giza was originally 483 feet tall, and it had a square base that was 756 feet on a side. It was built from rectangular stone blocks measuring 7 feet by 7 feet by 15 feet. Such a block weighs seventy tons. Approximately how many tons of stone were used to build the Great Pyramid? The volume of a pyramid is 1/3 the base area times the height. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #109431 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=109431\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First, let's find the volume of one stone block:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V=l%2Aw%2Ah ALIGN=MIDDLE  ALT=\"V=l%2Aw%2Ah\"   DISABLED_style= \"max-width:90%; height:auto;\" > Start with the volume of a rectangular block equation\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V=7%2A7%2A15 ALIGN=MIDDLE  ALT=\"V=7%2A7%2A15\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in l=7, w=7, and h=15\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V=735 ALIGN=MIDDLE  ALT=\"V=735\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply\r<BR>\n" );
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document.write( "So the volume of one stone block is 735 cubic feet.\r<BR>\n" );
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document.write( "Now let's find the volume of the pyramid:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V=%281%2F3%29b%2Ah ALIGN=MIDDLE  ALT=\"V=%281%2F3%29b%2Ah\"   DISABLED_style= \"max-width:90%; height:auto;\" > Start with the volume of a pyramid equation\r<BR>\n" );
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document.write( "Since the base is 756 feet, this means that the area of the base is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=756%2A756=571536 ALIGN=MIDDLE  ALT=\"756%2A756=571536\"   DISABLED_style= \"max-width:90%; height:auto;\" > square feet.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V=%281%2F3%29b%2Ah ALIGN=MIDDLE  ALT=\"V=%281%2F3%29b%2Ah\"   DISABLED_style= \"max-width:90%; height:auto;\" > Start with the volume of a pyramid equation\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V=%281%2F3%29%28571536%29%2A%28483%29 ALIGN=MIDDLE  ALT=\"V=%281%2F3%29%28571536%29%2A%28483%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=571536 ALIGN=MIDDLE  ALT=\"b=571536\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h=483 ALIGN=MIDDLE  ALT=\"h=483\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V=92017296 ALIGN=MIDDLE  ALT=\"V=92017296\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply\r<BR>\n" );
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document.write( "So the volume of the entire pyramid is 92,017,296 cubic feet.\r<BR>\n" );
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document.write( "Now to find out how many blocks are needed to construct the pyramid, simply divide the volume of the pyramid by the volume of one block like this\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=92017296%2F735=125193.6 ALIGN=MIDDLE  ALT=\"92017296%2F735=125193.6\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So rounding up, we need about 125,194 blocks to construct the pyramid. </SPAN>\n" );
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