Question

The perimeter of a rectangle is equal to 42cm if its breadth is 9cm.find the length of the rectangle

Answer 1

Answer:

Step-by-step explanation:

Acording to the formula of perimeter is =2(l+b)

Let p =42

B=9

L=x

So

42=2(9+x)

42=18+2x

42-18=2x

24÷2=x

Answer is 12

So the length is 12

Answer 2

Answer:

12 cm answer

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