it is the property of solid crystal that they have straight edges and flat faces.
Three million four hundred thousand in figures is 3,400,000
Any ellipsoid, including the sphere.
that is a cube
triangula prism
it is the property of solid crystal that they have straight edges and flat faces.
A flat (2D) shape triangle has 3 straight edges. A triangular pyramid has 6 straight edges. A square pyramid has 8 straight edges. (Note, some vertical edges have already been counted as you move from one face to the next.)
Three million four hundred thousand in figures is 3,400,000
sphere
Any ellipsoid, including the sphere.
No, a pyramid is a polyhedron with flat faces and straight edges.
Polyhedron is a geometric solid in three dimensions with flat faces and straight edges.
that is a cube
triangula prism
No, not all crystals have smooth edges. Some crystals, like pyrite and fluorite, can have natural jagged or rough edges depending on their formation process. Smooth edges are more common in crystals like quartz and amethyst that form in more stable environments.
This shape is a cube.
There are 12 edges on a cube. There are 5 flat surfaces (planes) on a cube as well.