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23. A rectangular piece of cardboard, 120cm by 50cm, is going to be used to make a rectangular box with an open top by

23. A rectangular piece of cardboard, 120cm by 50cm, is going to be used to make a rectangular box with an open top by cutting congruent squares from the corners, as shown below. Calculate the dimensions (to one decimal place) for a box with the largest volume. (6 marks) X X X X X wath for the

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