in a 2D image yes, because being four sided, it will always be some configuration of a square.
four sides and four corners
a square and a rhombus
It is a square as square has 4 sides and all of them are equal. Also it has 4 corners.
Both statements are not always true. A square is a rectangle (a shape four sides and four corners which are all right angles) but a rectangle is not necessarily a square (a shape with four equal sides and four corners that are all right angles).
A square box
A quadrilateral.
A QUADRILATERAL has four corners and four sides, along with four angles. These do not need to be congruent (equal) but they can be.
No shape can have two corners
There is no such shape. If it has two sides meeting, it also has to have a corner. A triangle has three sides and three corners, and a square has four sides and four corners. There is nothing in between.
Four corners and sides
A Square
A shape that has four sides and four corners but is not a square is a rectangle. Rectangles have opposite sides that are equal in length and all angles are right angles, just like squares, but the adjacent sides can differ in length. Another example could be a trapezoid, which has one pair of parallel sides and can also have four corners.