document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=101472>Question 101472</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0073016020/algebrahomeworkh>Beginning Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Tutor, \r<BR>\n" );
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document.write( "May I get some help with this word problem?  \r<BR>\n" );
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document.write( "Insulation comes in 40-cm wide rolls.  If the roof is 7 m from peak to eave and the attic space is 3 m high at the peak, how long does each of the pieces of insulation need to be?  Round to the nearest tenth.  \r<BR>\n" );
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document.write( "Thank you for your help with this problem.   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #73880 by </B><A HREF=/tutors/aboutme.mpl?userid=oberobic><B>oberobic(2304)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oberobic><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=73880\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is a Pythagorean theorem problem. You'd told the roof side is 7 m, and the height is 3.  So apply the theorem we know that 7^2 = 3^2 + x^2.  Simplifying, we  have 49 = 9 + x^2. So x^2 = 40, which means x = sqrt(40).\r<BR>\n" );
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document.write( "That would be a piece that goes half way across the roof, since the triangle I solved was from the center of the roof to the eave.\r<BR>\n" );
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document.write( "Therefore, each piece has to 2 * sqrt(40).  </SPAN>\n" );
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