The area of a rectangular field is 1500 sq.m and its perimeter is 160 m. Find it length and breadth?
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Hii..
The perimeter of rectangular feild=2(l+b)
160=2(l+b)
(l+b)=80
l=80-b
area of rectangular feild=l×b
1500=l×b
l=1500/b
80-b=1500/b
b^2-80b+1500=0
(b-50)(b-30)=0
b=50 or 30
but breadth is small in length
so,b=30m
and l=50m
The perimeter of rectangular feild=2(l+b)
160=2(l+b)
(l+b)=80
l=80-b
area of rectangular feild=l×b
1500=l×b
l=1500/b
80-b=1500/b
b^2-80b+1500=0
(b-50)(b-30)=0
b=50 or 30
but breadth is small in length
so,b=30m
and l=50m
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