document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=393072>Question 393072</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this problem.\r<BR>\n" );
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document.write( "Two walls are in the shape of a trapezoid with bases that measure 12 feet and 28 feet and a height of 12 feet. You wish to wallpaper the two walls. One roll of wallpaper will cover 40 square feet. How many rolls of wallpaper should you purchase? \r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #279020 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=279020\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two walls are in the shape of a trapezoid with bases that measure 12 feet and 28 feet and a height of 12 feet. You wish to wallpaper the two walls. One roll of wallpaper will cover 40 square feet. How many rolls of wallpaper should you purchase? \r<BR>\n" );
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document.write( "parallel sides length = 12 * 28 feet<BR>\n" );
document.write( "height = 12 feet<BR>\n" );
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document.write( "Area of trapezoid A = 1/2 sum of parallel sides* height<BR>\n" );
document.write( "A= 1/2 *(12+28) * 12<BR>\n" );
document.write( "A= 1/2 * 40 * 12<BR>\n" );
document.write( "A = 240 ft^2<BR>\n" );
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document.write( "One paper roll = 40 ft^2<BR>\n" );
document.write( "240 / 40= 6<BR>\n" );
document.write( "so you need 6 rolls<BR>\n" );
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document.write( "m.ananth@hotmail.ca </SPAN>\n" );
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