Question

The perimeter of a rectangle is 13cm and its width is 3
2
4
cm. Then its length is

Answer 1

Answer:

Step-by-step explanation:

The perimeter of a rectangle is 13 cm and its breadth is 2 3/4cm

let lenght be l

now  

=> 11/4 cm

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

Answer 2

Answer:

4.5

Step-by-step explanation:

perimeter is equal to to length × breath

length is equal to perimeter divided by 2 minus breath