Question

The perimeter of a rectangular grassy plot is 350 M and breadth is 80 metre find the length and the area of the plot

Answer 1

$we \: know \: that \\ perimeter = 2(l+b) \\ so \: 350 = 2l + 2(80) \\ 350 - 160 = 2l \\ so \: l = 95 \: cm \\ area = l \times b \\ so \: area = 7600 {cm}^{2}$
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Answer 2

2(l+b) =350 m
b=80 m
length
2(l+80)=350 m
2l+2×80=350
2l+160=350
l=350-160/2
l=190/2
l=95

area =l×b
=95×80
=7600m2

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