area
That's the area.
the area is that 2 dimensional space inside of the closed figure. normally specified as square centimeters or square inches
There is no "space" inside a solid figure (body).However the solid figure can be measured in terms of its volume (the amount of space it occupies).
Yes, Gauss's law can be applied to a sheet of charge. The electric field above and below a uniformly charged sheet can be calculated using Gauss's law by considering a Gaussian surface that is a plane passing through the sheet. This approach simplifies the calculations as the electric field is constant and normal to the surface.
area
I do not know but: A closed figure is a figure with sides all around. (if the sides were fences and you were on the inside you could not get out witout climbing a fence)
Gauss's Law states that the total electric flux through a closed surface is equal to the charge enclosed by that surface divided by the permittivity of free space. In simpler terms, it describes how the total electric field passing through a closed surface is related to the total charge inside that surface.
A polygon is a closed plane figure bounded by straight sides. Since it is a closed surface, it has an interior (inside) and an exterior (outside). The interior angle of a polygon is the angle formed by two adjacent sides such that the angle is facing the interior of the polygon.
Yes
No, according to Gauss's law for magnetism, the total magnetic flux through a closed surface is zero. This is because magnetic monopoles do not exist, so the magnetic field lines always form closed loops.
It depends on the type of figure. If it is a 2D figure, then it is called area. If it is a 3D figure, then it is called volume.
surface area is the like the area of the outside of a 3 dimensional figure, area is the measure of what is inside a 2 dimensional