It is called the surface area.
A flat surface generally refers to a horizontal surface and is referred to as the plane.
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.
The flat surface of a solid figure is called a face. For example, a rectangular prism has 6 flat surfaces and therefore 6 faces.
A plane surface.
table
A flat surface generally refers to a horizontal surface and is referred to as the plane.
Plane.
Area.
its is called baseball
It's called a face
A plane
This is called a map projection.
i believe it is called a plane/plain.
A map.
Face.
mercator