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A steel block with a volume of 2000 cubic decimeters is forged into a rectangular square steel with a cross-sectional area of 20 square decimeters. How long is this rectangular square steel (1) A steel block with a volume of 2000 cubic decimeters is forged into a rectangular square steel with a cross-sectional area of 20 square decimeters. How long is the rectangular square steel? (2) A 12 decimeter long, 10 decimeter wide rectangular sheet iron, in his four corners each cut a side length of 2 decimeter small square, welded into an open sheet iron water tank. The tank's volume is about how many liters? Sheet iron thickness is ignored (3) A cube iron block is put into a cuboid water tank with a length of 25 cm, a width of 12 cm and a height of 20 cm, and then water is added into the glass jar, so that the iron block is completely immersed in the water. When the iron block is taken out of the water, how many cm will the water in the FRP drop? Please answer any question you think of, The edge length of cube iron is 9 cm
1. 2000 / 20 = 100 decimeters = 1000 centimeters
2. 2 * 2 * 2 = 8 cubic decimeters = 8 liters
3. The conditions seem incomplete
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