菱形的动态属性

GeoGebra 命令及参数

1. Line(A, B) → a
2. LineBisector(A, B) → b
3. Point(b) → C
4. Mirror(C, a) → C'
5. Segment(A, C) → c
6. Segment(C, B) → d
7. Segment(B, C') → e
8. Segment(C', A) → f
9. Angle(C, B, C') → β
10. Angle(B, C', A) → γ
11. Angle(C', A, C) → δ
12. Segment(C, C') → g
13. Segment(A, B) → h
14. Intersect(g, h) → D
15. Angle(B, D, C) → ε
16. Polygon(C, B, D) → poly1, d_1, c_1, b_1
17. PointIn(poly1) → Pointpoly1
18. Polygon(A, C, D) → poly2, d_2, a_1, c_2
19. PointIn(poly2) → Pointpoly2
20. Polygon(B, D, C') → poly3, c', b_2, d_3
21. PointIn(poly3) → Pointpoly3
22. Polygon(A, D, C') → poly4, c'_1, a_2, d_4
23. Angle(A, C, B) → α
24. Polygon(A, D, C') → poly5, c'_2, a_3, d_5
25. PointIn(poly4) → Pointpoly4