I don't know but you have bad grammer
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It is a net.
Coal is a three dimensional solid but in most forms it is an amorphous solid, not crystalline and so there is no pattern.
The net of a cube
A net.A net.A net.A net.
A net.
A net.
Coal is a three dimensional solid but in most forms it is an amorphous solid, not crystalline and so there is no pattern.
A net is a two dimensional pattern that can be cut out and folded to make a 3-dimensional [solid] shape. A 2-dimensional shape, such as a square, does not have a net!
A pattern that you can cut and fold to make a model of a solid shape.
A lattice.
net
SQUARE
A square
The net of a cube
A net for the 3D shape.
A net.A net.A net.A net.
A 3-dimensional pattern.
A net.