maddiemp9971 maddiemp9971

25-01-2018
Mathematics

contestada

The length of a rectangle is twice its width. if the perimeter of the rectangle is 60 cm , find its length and width.

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frenchiegirl frenchiegirl

28-01-2018

largeur = x

longueur = 2 x

2 ( x + 2 x ) = 60

2 x + 4 x = 60

6 x = 60
x = 10

largeur = 10 et longueur = 20

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