Question

The perimeter of rectangle is 13 cm and it's breath is 11/4 cm . Find its length in cm​

Answer 1

perimeter of rectangle=2(l+b)

2(l+11/4)=13

l+11/4=13/2

l=13/2-11/4

l=26-11/4

l=15/4cm.

so the length is 15/4cm..

hope it helps.

Answer 2

The perimeter of a rectangle is 13 cm and its breadth is 11/4 cm.

let lenght be l.

perimeter of rectangle = 2(l+b)

so ,

13 = 2(l+b)

13 = 2(l+11/4)

13 = 2l +11/2

13 - 11/2 = 2l

26-11/2 = 2l

15/2 = 2l

=>l= 15/2*2

=>l = 15/4cm

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