HARRY!help me to exolain an english math question
有谁能帮我翻译一下
You have to make a square_bottomed.Unlidded box with a height of three inches and a volume of approximately 42 cubic inches.You will be taking a piece of cardboard,Cutting three_inch squares from each corner,scoring between the corners and folding up the edges what should be the dimensions of the cardboards to the nearest quarter inch?