A rectangular lawn is twice as long as its breadth and its perimeter is 90 m.

1 answer:

7 0

Answer: length = 30, breadth = 15

length = l
breadth = b

l = 2b

2b + b + 2b + b = 90
6b = 90
b = 15

l = 2b
l = 2(15)
length = 30

b = 15
breadth = 15

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