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Length of the fence around garden

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by ern5231 » Mon Aug 10, 2009 3:07 pm
A Fence is around a rectangular garden and the length:breadth for fence is 3:1. The total area covered by the fence and the garden is 1600 and the difference in the area of fence and garden is 400.What is the length of the fence?
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by kottav » Tue Aug 11, 2009 6:57 pm
the dimensions of the fence are 3x and x, which means its area is 3x^2. If the area of the total space is 1600 and the difference in area between garden space and enclosed fence area is 400, then 3x^2+400=1600, or x=20.

The length therefore is 60.

This is kind of a confusinq question tho: are they asking for perimeter or length?
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by tom4lax » Wed Aug 12, 2009 2:27 pm
Yeah a picture to go along with the question would help tremendously.

how does a fence have area?
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