babies
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An angle is formed when two rays meet.
These are the points where three faces meet.
A polyhedron (solid shape formed by plane faces) with four faces is called a tetrahedron.
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.
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.