if perimeter of rectangle is 13 cm and it’s width is 2 3/4 find its length​

Question

if perimeter of rectangle is 13 cm and it’s width is 2 3/4 find its length​

in progress 0
Parker 4 weeks 2021-08-18T17:44:54+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-08-18T17:45:56+00:00

    Answer:

    15/4

    Step-by-step explanation:

    Perimeter given= 13 cm

    Width given= 2 3/4 cm = 11/4 cm

    Length=?

    Perimeter= 2(l+w)

    13=2(l+11/4)

    13/2=4l+11/4

    26=4l+11

    15=4l

    l=15/4

    0
    2021-08-18T17:46:23+00:00

    Answer:

    15/4cm  

    Step-by-step explanation:

    hi

    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  

    hope it helps u

Leave an answer

Browse
Browse

18:9+8+9*3-7:3-1*13 = ? ( )