None
An angle is formed when two rays meet.
A pentagonal prism has ten solid angles. Each of these is formed where three faces meet - so there are 3*10 = 30 dihedral angles.
In 2 dimensional space, a vertex is formed when two lines meet at an angle. In 3D space, a vertex is a point where three or more faces meet.A sphere is not an arced line but is one curved surface. It has no vertex.
A polyhedron (solid shape formed by plane faces) with four faces is called a tetrahedron.
edge
EDGE
An edge.
Edge
edge!
As long as they are not parallel, they will meet at an "edge", which is just a straight line.
If the faces are flat, it's a line.
vertice
the edge
edge
edge
Edges are found in 3-dimensional objects. Then vertices are the corners and edges are the lines formed where two faces meet. In this case, sides usually refers to the faces.