What are some examples of an irregular quadrilateral?

A regular polygon has all sides equal and all angles equal also. The regular quadrilateral is called a square. Thus, any quadrilateral which is a not a square is not a regular quadrilateral. E.g., all these are irregular:. read more

A regular polygon has all sides equal and all angles equal also. The regular quadrilateral is called a square. Thus, any quadrilateral which is a not a square is not a regular quadrilateral. read more

Try drawing a quadrilateral, and measure the angles. They should add to 360° Types of Quadrilaterals . There are special types of quadrilateral: Some types are also included in the definition of other types! For example a square, rhombus and rectangle are also parallelograms. read more

A Watt quadrilateral is a quadrilateral with a pair of opposite sides of equal length. A quadric quadrilateral is a convex quadrilateral whose four vertices all lie on the perimeter of a square. A diametric quadrilateral is a cyclic quadrilateral having one of its sides as a diameter of the circumcircle. read more

(e) Lines joining the mid points of the sides of a quadrilateral in an order form a parallelogram. (f) The sum of the four exterior angles is 4 right angles. (g) The sum of the four interior angles is 4 right angles. Properties on concave quadrilaterals (a) The four sides are unequal. read more