Posted by **Andrea** on Friday, June 19, 2009 at 6:06am.

A rectangular field is surrounded by a fence on three of its sides, and a straight hedge on the fourth side. If the length of the fence is 320m, find the maximum area of the field enclosed.

So...how should i do it? Does it matter which of the 'three sides' they are talking about?? I don't seem to get the question... Please help!

Let x be length and y be width,

then Area = xy

Area = 320y

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