document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1136805>Question 1136805</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A pyramid has a triangle base and all edges in the pyrimaid are equal. If the volume is 90 what is the area of the base  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #754685 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=754685\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "The pyramid is a regular tetrahedron, with each face an equilateral triangle.<br><BR>\n" );
document.write( "The formula for the volume of a regular tetrahedron with edge length s is<br><BR>\n" );
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document.write( "The formula for the area of an equilateral triangle with side length s is<br><BR>\n" );
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document.write( "Use the given volume in the volume formula to solve for the edge length s; then substitute into the area formula to find the area of the base.<br><BR>\n" );
document.write( "Ugly with pencil and paper; use a calculator if a decimal approximation is acceptable. </SPAN>\n" );
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