document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=78337>Question 78337</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi.. need some help with this word problem that is part of a math chapter on Applications of the Pythagorean Theorem... thanks!\r<BR>\n" );
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document.write( "A homeowner wishes to insulate her attic with fiberglass insulation to conserve energy. The insulation comes in 40-cm wide rolls that are cut to fit between the rafters in the attic. The roof is 6 m from peak to eave and the attic space is 2 m high at the peak.\r<BR>\n" );
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document.write( "For the home described in this example, 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.<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 #56192 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=56192\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A homeowner wishes to insulate her attic with fiberglass insulation to conserve energy. The insulation comes in 40-cm wide rolls that are cut to fit between the rafters in the attic. The roof is 6 m from peak to eave and the attic space is 2 m high at the peak.<BR>\n" );
document.write( "For the home described in this example, 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.<BR>\n" );
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document.write( "This is just a \"find the side of right triangle\" problem:<BR>\n" );
document.write( "The roof length is the hypotenuse, one side is the height to the peak;<BR>\n" );
document.write( "We need to find the horizontal side:<BR>\n" );
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document.write( "Remember a^2 + b^ = c^2, let the horizontal side = a<BR>\n" );
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document.write( "a^2 + 3^2 = 7^2<BR>\n" );
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document.write( "a^2 + 9 = 49<BR>\n" );
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document.write( "a^2 = 49 - 9<BR>\n" );
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document.write( "a = sqrt(40)<BR>\n" );
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document.write( "a = 6.3 meters<BR>\n" );
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document.write( "Later as I thought about it, I realized that it would be 2 * 6.3 = 12.6 meters<BR>\n" );
document.write( "for a conventional roof ceiling.  Sorry for the screw up </SPAN>\n" );
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