document.write( "Question 621313: The base ground of your house measures 20m  9m. You want to build a rectangular
\n" ); document.write( "fence surrounding your house which is at a distance of 3m from the house at all sides.
\n" ); document.write( "How many meters of fence do you need?\r
\n" ); document.write( "\n" ); document.write( "Please explain because I really don't understand it at all!
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Algebra.Com's Answer #390775 by KMST(5328)\"\" \"About 
You can put this solution on YOUR website!
A drawing often helps.
\n" ); document.write( " The blue rectangle represents the outline of the house, the black rectangle represents the fence.
\n" ); document.write( "The lengths of the sides of both rectangles (in meters) are marked in the drawing.
\n" ); document.write( "Because the front side of the fence has to be 3 feet in front of the house and the back side has to be 3 feet behind the house, the width of the black rectangle is
\n" ); document.write( "\"9%2B3%2B3=15\".
\n" ); document.write( "Likewise, the width of the fenced-in spaces to the left and right of the house add up to make the long side of the fence enclosure
\n" ); document.write( "\"20%2B3%2B3=26\" feet long.
\n" ); document.write( "The whole perimeter of the fence will be (adding the lengths of all 4 sides)
\n" ); document.write( "\"15%2B26%2B15%2B26=82\" meters. That is how much fence you need.
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