document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1078209>Question 1078209</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The length of a side of the base of a pyramid is 9 cm, and the slant height is 19 cm. Find the surface area of the pyramid.\r<BR>\n" );
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document.write( "SA = ? cm^2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #692724 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=692724\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> SA+area of base plus 4*area of one of the faces<BR>\n" );
document.write( "9*9=81 cm^2 for base<BR>\n" );
document.write( "area of the face is a triangle with area=(1/2)bh=(1/2)9*19=171/2 cm^2<BR>\n" );
document.write( "There are four of these faces, so their combined area is 342 cm^2<BR>\n" );
document.write( "Total area is 423 cm^2<BR>\n" );
document.write( "It is also the base area + (1/2) perimeter* slant length=81+36*19/2<BR>\n" );
document.write( "=81+ 18*19=81+342=423 cm^2 </SPAN>\n" );
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