SOLUTION: If the perimeter of the rectangle is 30cm , find its area.

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Question 354604: If the perimeter of the rectangle is 30cm , find its area.
Found 3 solutions by Alan3354, vleith, JBarnum:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Depending on the length and width, it can be from >0 up to 56.25 sq cm.

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Let the length be given by l.
The permieter of a rectangle is given by perimeter+=+2l+%2B+2w
So %2830+-+2l%29%2F2+=+w
The area is then l%2Aw
l+%2A+%28%2830+-+2l%29%2F2+%29+
15l+-+l%5E2

Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
not enough info
if L=8 and W=7 then A=56
if L=9 and W=6 then A=54
if L=10 and W=5 then A=50
if L=11 and W=4 then A=44
if L=12 and W=3 then A=36
if L=13 and W=2 then A=26
if L=14 and W=1 then A=14
all the above all have the same perimeter but different areas