The area of the rectangular piece of cardboard shown below is 192 square inches. The cardboard is used to make an open box by cutting a 3-inch square from each comer and turning up the sides. If the box is to have a volume of 180 cubic inches, find the length and width of the cardboard that must be used. The length of the cardboard is inches and the width is inches.

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A: Explanation of the answer is as follows

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A: According to the question: