Question

the perimeter of the rectangular field is 120 metre if its length is 40 cm, find its breadth and area ​

Answer 1

Answer:

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let the breadth be x cm

perimeter of a rectangle = 2(l + b)

120 = 2(40 + x)

120 = 40 + x

2

60 - 40 = x

x = 20 cm

breadth = x = 20 cm

Answer 2

ATQ
120= 2(40+b)
B= 20 cm