Question

10. The length of a rectangle is twice its width. If
its perimeter is 54 cm, find its length.​

Answer 1

Answer:

length= 18

Step-by-step explanation:

let width be x then length 2x

perimeter=2(length+width)

54=2(2x+x)

3x= 27

x= 9

length=2x=18

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Answer 2

Answer:

Your answer is: 18cm

Step-by-step explanation:

Perimeter of rectangle=2(L + W)

So, L = 2W

then, perimeter of rectangle = 2 (2W+W)

54= 6W

W = 9cm

then, L = 9 x 2

L = 18cm

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