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A poster is 3 inches long. it is 4 times as wide as it is long find the perimeter and area of the poster?

1 answer:

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So we know that the width is 12 because 4 x 3 = 12. The formula to find the perimeter is Length + length + width + width. So you would do 3 + 3 + 12 + 12 = 30. Therefore the perimeter is 30 inches

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