Help with maths!
posted by Andrea .
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

Help with maths! 
PsyDAG
The maximum area would be a square, so let x be the length of one side.
3x = 320 and
x^2 = area
Area ≠ 320y
I hope this helps. Thanks for asking.
Respond to this Question
Similar Questions

math
A rectangular field is to be enclosed by a fence. Two fences parallel to one side of the field divide the field into three rectangular fields. If 2400m of fence are available find the dimensions giving the max area. 
Calc.
Please help solve this, A farmer has 600m of fence and wants to enclose a rectangular field beside a river. Determine the dimensions of the fence field in which the maximum area is enclosed. (Fencing s required on only three sides: … 
Calculus 1
A rectangular field is enclosed by a fence and separated into two parts by a fence parallel to one of the sides. If 600 m of fencing is available, what should the dimensions be so that the area is a maximum? 
area and perimeter
a farmer wishes to build a fence around a rectangular field and divide it into two equal parts as well.the dividing fence must be parallel to one of the side of the field. you are asked to find dimension of the field of maximum area … 
Math (Quadratic Equations)
A field is bound on one side by a river. A farmer wants to enclose the other three sides of the field with fence in order to create a rectangular plot of land for his cows. If the farmer has 400m of fence to work with, determine the … 
Math
A fence encloses a rectangular field. The field is 4 meters longer than it is wide. The total length of the fence is 144 meters. What is the area in square meters of the enclosed field? 
math
Tshabalala wants to reconstruct his farm to separate his sheep and goats. Therefore he decided to enclose a rectangular field with a fence and divide it into two smaller rectangular fields by constructing another fence parallel to … 
math
A farmer wants to fence in three sides of a rectangular field shown below with 880 feet of fencing. The other side of the rectangle will be a river. If the enclosed area is to be maximum, find the dimensions of the field. 
nhps maths
the area of a rectangular field is 78 square metre.its length is 13m .find out its breadth.if it costs rupees55 per metre to fence the field,how much would it cost to fence the entire field? 
Algebra
A homeowner wants to enclose a rectangular piece of land beside a river. He must put a fence on 3 sides of the field (the river forms the fourth side). The field has length L (which runs parallel to the river) and width W. The homeowner …