Answer
Square is a two-dimensional figure with four sides of equal length. A rhombus is a two-dimensional figure with four sides equal in length, but angles are of different degrees.
Work Step by Step
Square has opposite sides parallel. The diagonals of square intersect each other. A square has it all four angles at right angles. A regular polygon is a figure in which all the sides are of the same length and all the angles are of same degree measure, which proves that every square is a regular polygon.
The rhombus is a closed figure with four sides in which all sides are equal in length but all angles of a rhombus are not equal in a measure, which proves that a rhombus is not a regular polygon.