Regular quadrilateral is a quadrilateral with four equal sides and four equal angles.
Regular quadrilateral has point as well as line symmetry.
Point symmetry is when every part has a matching part.It means that it has the same distance from the central point and Line symmetry is the symmetry that a figure has if it can be divided by a line into two parts that are mirror images.
Regular quadrilateral has the same distance from the central point and it can also be divided by a line into two parts that are mirror images.
Therefore, regular quadrilateral has point as well as line symmetry.