风筝形性质演示 by GMMDC

GeoGebra 命令及参数

1. Corner(1, 1) → Cnr1
2. Corner(1, 2) → Cnr2
3. Corner(1, 3) → Cnr3
4. Corner(1, 4) → Cnr4
5. Polygon(CN1, CN2, CN3, CN4) → Panel, cn1, cn2, cn3, cn4
6. Segment(A, D) → p
7. Circle(A, D) → c
8. Point(c) → B
9. Midpoint(B, D) → C
10. Ray(A, C) → a
11. Point(a) → E
12. Segment(A, B) → b
13. Segment(B, E) → d
14. Segment(E, D) → e
15. Segment(D, B) → f
16. Angle(B, C, A) → α
17. Segment(B, C) → g
18. Segment(D, C) → h
19. Segment(A, E) → i
20. Angle(D, A, E) → β
21. Angle(E, A, B) → γ
22. Angle(A, E, D) → δ
23. Angle(B, E, A) → ε