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Inscription of primary school mathematics thinking questions
Just another piece of tin foil: base diameter: 6.28 ÷ 3. 14 = 2 decimeter radius: 2 ÷ 2 = 1 decimeter.

Therefore, it is appropriate to cut a square tin sheet with a side length of 2 decimeters.

Bottom area = 3.14 *12 = 3.14 square decimeter.

Volume = bottom area * height =3. 14*4= 12.56 cubic decimeter =0.0 1256 cubic meter.

A cubic meter of water should weigh 1000 kg.

So it can hold 0.01256 *1000 =12.56 kg.

If there is only that tin, you need to forget it, because the topic is not clear. ...

Personally, if it is a primary school topic, the first situation will not occur.