Question: 3. An open rectangular box is to be made by cutting four equal squares from each corner of a 40 cm by 15 cm sheet

3. An open rectangular box is to be made by cutting four equal squares from each corner of a 40 cm by 15 cm sheet of cardboard and then folding up the sides. The finished box must be between 2 cm and 6 cm deep. What are the dimensions of the finished box if the volume of the box is to be maximized? Round your final answer to the Nearest hundredth. [8]

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