The sum of all angles of a 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 angle sum of a quadrilateral
- Angle sum of polygons
- In a right triangle one angle measures x° where sin ° = x 4 5 . what is cos(90° − °) x