A sphere
The geometric term for the number of square units needed to cover a surface is called the area of said surface.
curve surface area
a ruler
Yes
A sphere
The geometric term for the number of square units needed to cover a surface is called the area of said surface.
A face
a sphere
curve surface area
Mineral
a polygon
a ruler
Yes
A plane is a flat surface
A sphere has a surface but no flat face.
A sphere