A net is an unfolded 3D geometrical shape
The net of a 3D shape
A cube.
Yes they are made out of 12 curved shapes (ellipses) called gores.
a pyramid is a 3D shape :)
It depends on the 3d shape.
Its a 3d net that can be transformed into a 3d shape
A net is a 2D representation of a 3D shape
a net
The question is not clear. Hardest, as in the most rigid, is a triangular prism (or tetrahedron). Hardest, to work the geometry of, is probably an irregular blob.
A net is an unfolded 3D geometrical shape
A net for the 3D shape.
The net of a 3D shape
a octahedron
It is a 3-D shape because a tetrahedron can be folded into a net!
It is called a net image
A tetrahedron (triangular pyramid).