The sum of all angles of quadrilateral is equal to
- The sum of all angles of a quadrilateral is equal to dash
- The sum of all interior angles of a quadrilateral is equal to
- The sum of all four angles of a quadrilateral is equal to
- The sum of angles of quadrilateral is equal to
- The sum of four angles of quadrilateral is equal to
- The sum of interior angles of quadrilateral is equal to
- The sum of exterior angles of a quadrilateral is equal to
- The sum of interior angles of any quadrilateral is equal to
- The sum of opposite angles of a quadrilateral is equal to
- Sum of all exterior angles of a quadrilateral is equal to
- The sum of opposite angles of a cyclic quadrilateral is equal to
- The sum of interior angles of a quadrilateral is always equal to