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The perimeter of a rectangle is 128 cm. The length of the rectangle is three times longer than the width. What is the length and width of the rectangle?

Respuesta :

bhavya2vemuri

Answer:

l=16 cm

w=48 cm

Step-by-step explanation:

perimeter of rectangle formula:

2l+2w

where

3w=l

and w=w

so

2(3w)+2w=128

6w+2w=128

8w=128

w=16

now substitute 16:

2l+2(16)=128

2l+32=128

2l=96

l=48

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