Sum of the angles of any quadrilateral is 360 degrees
- The sum of the interior angles of any quadrilateral is 360 degrees
- Sum of interior angles of a quadrilateral is 360 degrees
- Prove that the sum of the angles of any quadrilateral is 360 degrees
- The sum of the exterior angles of any quadrilateral is always 360 degrees
- Sum of all the angles of a quadrilateral is 360 degrees
- The sum of the angles of a quadrilateral is 360 degrees