Question

The perimeter of a rect
-angle is 1:3 cm and its
width is 2 3/4cm. Find its
length.​

Answer 1

Step-by-step explanation:

It's easy...

As we know,perimeter of rectangle=2× (l+b)

Therefore, 2×(2 3/4+b)

Now again as we know, perimeter=13cm

Therefore,2 (2 3/4+b)=13

2(11/4+b)=13

11/4+b=13/2

b=13/2-11/4

b=13×2/2×2-11/4

b=26/4-11/4

b=15/4cm

Hope it helps you..

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Answer 2

Answer:

Step-by-step explanation:

question The perimeter of a rect

-angle is 1:3 cm and its

width is 2 3/4cm. Find its

length.​

in this we will multiply 2.75 x 3

hope it helps please mark as brainliest