Answer: length is 22m and breadth is 40m.
Explanation:
breadth = b
length = 18+b
so
perimeter of rectangle = 2(l+b)
124 = 2(18+b+b)
or, 124 = 36 + 4b
or, 124-36 = 4b
or, b = 88/4 = 22m
l = 18 + b
= 18+22
= 40m
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