风筝图形与几何作图

GeoGebra 命令及参数

1. Circle(A, B) → c
2. Point(c) → D
3. Circle(C, D) → d
4. Segment(A, D) → a
5. Segment(D, C) → b
6. Segment(C, B) → e
7. Segment(B, A) → f
8. Angle(B, A, D) → α
9. Angle(D, C, B) → β
10. Angle(C, B, A) → γ
11. Angle(A, D, C) → δ
12. Distance(B, A) → distanceBA
13. Distance(D, A) → distanceDA
14. Midpoint(D, A) →
15. Distance(C, D) → distanceCD
16. Midpoint(C, D) →
17. Distance(C, B) → distanceCB
18. Midpoint(C, B) →