Face.
The flat surface that goes on and on in all directions has no boundaries. This flat surface is called infinite surface. Accordingly, the answer is that the flat surface that goes on and on in all directions is called an infinite surface.
A face.
It has a flat base, a curved surface area, a circular edge and one vertex.
Plane.
An hemisphere is half of a globe with a circular flat base, a round edge, a curved surface but no vertices.
The edge of a hemisphere is called the "great circle." This is the circular boundary that separates the curved surface of the hemisphere from the flat circular base. It represents the intersection of the hemisphere with the plane that bisects it.
The flat surface that goes on and on in all directions has no boundaries. This flat surface is called infinite surface. Accordingly, the answer is that the flat surface that goes on and on in all directions is called an infinite surface.
A face.
It is called the surface area.
This is a practical definition of a boundary, or of a line, or the corner of a solid object such as a table. -- The top of the table is bounded by the edge. -- at this boundary there is a line. --
A flat surface generally refers to a horizontal surface and is referred to as the plane.
A flat surface generally refers to a horizontal surface and is referred to as the plane.
a cone has one flat surface one vertex and no edge.
its called a face an edge is called en edge a point is called a vertex
One flat surface is a table. Many flat surfaces are facets.
its a lens...1 curved edge = a circle, 1 flat surface = back, 1 curved surface = front. (these are used in some battery-less flashlights, as an example.)
The flat surface of a diamond is called the table if it is on the 'top' of a cut diamond. Otherwise, the flat surface is called a facet, some with specific names. Read more, below.