Question

perimeter of rectangular Garden is 36 m and the area is 8000 m square find its length and breadth

Answer 1

hi buddy,

perimeter of garden = 2(a+b) = 360
a + b =180, a=180-b
also area of rectangle = a * b = 8000
(180-b)b = 8000
b2 - 180b + 8000 =0
b2 -100b-80b + 8000 =0
b(b-100) -80(b-100) =0
(b-80) (b-100)=0
b=100,80
length =100 meter, breadth =80 meter

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