Is it possible to design a rectangular park of perimeter 40m and area 400m2?
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l+b=20
lb=400
(l-b)^2=(l+b)^2-4ab
=20^2-1600
=400-1600
= -1200 which is not possible as squares can’t be negative
So not possible
lb=400
(l-b)^2=(l+b)^2-4ab
=20^2-1600
=400-1600
= -1200 which is not possible as squares can’t be negative
So not possible
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