document.write( "Question 79431: 3a homeowner wishes to insulate her attic with fiberglass insulatio to conserve energy. The insulation comes in 40-cm wide rolls that are cut to fit between the rafers in the attic. If the roof is 7 m from peak to eave and teh 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. \n" ); document.write( "
Algebra.Com's Answer #56997 by checkley75(3666)\"\" \"About 
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THIS IS A RIGHT TRIANGLE PROBLEM WITH THE HYPOTENUSE=7 & 1 SIDE=3.
\n" ); document.write( "THUS WE HAVE THE FORMULA
\n" ); document.write( "A^2+3^2=21^2
\n" ); document.write( "A^2+9=441
\n" ); document.write( "A^2=441-9
\n" ); document.write( "A^2=432
\n" ); document.write( "A=20.8 CM. ANSWER FOR THE LENGTH OF EACH PIECE OF INSULATION.
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