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.