A worker has a piece of metal that is 80 cm square. He needs to make an open box that has the greatest possible volume. He cuts equal square pieces from each corner of the sheet and the remaining piece is bent to form an open box.

What size would the box need to be to obtain the maximum possible volume and how much would it hold?

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side of d square so formed wud b 160/3 cm. n d volume wud b 1024000/9 cm^3….

correct me if i m wrong…..