The sum of the interior angles of quadrilateral is 180
- The sum of the interior angles of a quadrilateral is 180 degrees
- The sum of the interior angles of a quadrilateral is 180 true or false
- The sum of interior angles of any quadrilateral is always 180 degrees
- The sum of interior angles of any quadrilateral is always 180
- The sum of the interior angles of a triangle is 180 of a quadrilateral is 360
- The angle sum of a quadrilateral
- Angle sum of polygons