1. Constructors
2. new
3. Properties
4. angularUnit
5. axisDirection
6. center
7. geometryType
8. hashCode
9. linearUnit
10. maxPointCount
11. maxSegmentLength
12. runtimeType
13. sectorAngle
14. semiAxis1Length
15. semiAxis2Length
16. startDirection
17. Methods
18. noSuchMethod
19. toString
20. Operators
21. operator ==