The units may be any squared units. It is an area. They may be square inches, feet, yards, miles, metres, kilometres etc.
The geometric term for the number of square units needed to cover a surface is called the area of said surface.
the answer is (area)
One, if the square is large enough.
area
4x
That depends on the surface and the units, but the surface area tells us that infomation.
It is the area.
area
surface area
trapezoid
It is the surface area of the solid.
The units may be any squared units. It is an area. They may be square inches, feet, yards, miles, metres, kilometres etc.