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the length of a rectangle is 3 times the width, and the perimeter is 144cm what is the length and with

Answer :

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Answer:

Width = 18 cm

Lenght = 54 cm

Step-by-step explanation:

L = 3W

P = 2L + 2W

The perimeter of a rectangle:

144 = 2 (3W) + 2W

144 = 8W

144/8 = W

W = 18

L = 3W = 3(18) = 54

I hope this help you

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