It is a regular quadrilateral which is a square
A plane
a face.
No. A square is a plane figure and conventionally for plane figures symmetry is considered in terms of rotation about a point or an axis (in the plane of the figure) but not a plane outside the plane of the square.
It is a figure that is the same as another figure in the plane. A square is the same plane figure as another square, but a cube is same the same plane figure even tho it is made up of 6 squares.
the differrence with circlce and square is that square has a 6faces if in space figure but in plane figure it only has 1 faces and a circle has a two kinds the first is cylinder and the second sphere this is a example of a geometry
octahedron
pentahedron
A solid figure having four plane faces
If you ask this, you fail Octahedron
yes, a square can only exist on a plane in euclidean geometry.
A hexahedron is a solid with six plane faces, and a cuboid is a six-sided figure each face of which is a rectangle.
rectangle