if the length of the rectangle is twice the width and the perimeter of the rrectangle is 30 cm, what is length and width of the rectangle

Question

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Answer 1

width= w

length= l=2w

 

perimeter= 2(l+w)

 

         30 = 2(2w+w)

         

         30=2(3w)

         

         30=6w

          5 = w

 

width= w = 5cm
length= l=2w =2(5)=10 cm