Question

the perimeter of a rectangular field is 151m.if its breadth is 32m find its length & area

Answer 1

2 (l+32)=151
2l+64=151
2l=87
l=87/2
l=43.5
Area=lb
=32×43.5
=1392m^2

Answer 2

Perimeter = 151m
Breath = 32m
Let length be x
Therefore, perimeter = 2(l + b)
151 = 2(x + 32)
151 = 2x + 64
151 - 64 = 2x
87 = 2x
x = 43.5
Length = 43.5
Now, Area = l * b
= 43.5 * 32
= 1392

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