Question

The perimeter of a rectangle is 13cm and its width is 2 3/4cm find its length

Answer 1

Answer:

15/4

Step-by-step explanation:

Perimeter of rectangle=2(l+b)

Here b=2 3/4=11/4cm

Perimeter=13cm

Therefore

13=2(l+(11/4))

13/2=l+11/4

13/2-11/4=l

15/4=l

Answer 2

↦Solution : -

Let the length of the rectangle be = x

Formula = Perimeter of rectangle = 2(l+b)

So ,

2 × [x + 2(3/4)]

2 [x + 11/4]

As we know that : -

Perimeter of the rectangle is 13cm ...

Now ,

2 [x + 11/4] = 13

x + 11/4 = 13/2

x = 13/2 - 11/4

26/4 - 11/4 = 15/4

15/4

Into mixed fraction = 3(3/4)

Therfore , the length of the rectangle is 3(3/4) cm