I know the length of each side is 8 cubic centimeters because if you multiply 16, 8, and 4, you get 512 cm3 for Lisa's box. Since Ken's box is the same as Lisa's, his
cube will also be 512 cm3. I know that each side can't be 5cm or 10cm because 512cm3 is in between 125cm and 100cm, so I multiplied all the number in between 5 and 10(6-9), and saw that when I multiplied 8x8x8, I got 512cm3,so that is how I know that each side is 8cm in length.
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