A crystal
A nickel has a smooth edge. No ridges.
A single edge does not intersect!
A sphere is a solid with no edges.
A cone has 1 circular edge
There is no solid that has those characteristics. To have an edge it must have another surface.
polyhedran
polyhedran
it is a crystal
Polyhedron. It's any three-dimensional shape made up of flat faces, sharp edges (where two faces meet), and points (where three faces meet).
A crystal!!
continental creates smooth peaks just remember the smoothe curved c edge is smooth>C Alpine creates sharp rugged peaks like the sharp point on the A
Operation Sharp Edge happened in 1990.
"Projecting" in this case means "sticking out." So a sharp projecting edge is a sharp edge that sticks out.
Any mineral that can be broken (cleaved) at a sharp angle can have a sharp edge. Substances like Flint are good examples
smooth
solid with 1 edge is a cone .
Willow leaves are smooth-edged.