cyclinder?
That is a rectangular solid.
Hexagon
A pyramid has the solid quadrilateral pyramid solid shape.However there are also pyramids with geometrical polyhedra/platonic solid shapes of tetrahedron.
A geometric solid shape with two congruent faces called bases is known as a prism. In a prism, the sides connecting the bases are parallelograms, and the shape can vary depending on the shape of the bases, such as triangular, rectangular, or hexagonal. The height of the prism is the perpendicular distance between the two bases.
A triangle is a geometric shape.
A net for a geometric solid is the 2-D pattern for constructing the 3-D shape.
crystal
That is a rectangular solid.
Cristal's
Describing a geometric solid with only two dimensions may not provide a complete representation of its shape and structure. A geometric solid is best described in three dimensions to convey its full volume, surface area, and shape.
Hexagon
A solid object has a definite volume and geometric form. Solids have tightly packed particles that do not conform to the shape of its container.
a sphere
I think you are referring to a crystal.
The pyramid is made in the geometrical solid shape of quadrilateral pyramid.However there are some geometrical polyhedra/ platonifc solid shapes of tetrahedron
geometric solid
A pyramid has the solid quadrilateral pyramid solid shape.However there are also pyramids with geometrical polyhedra/platonic solid shapes of tetrahedron.