垂心轨迹演示

GeoGebra 命令及参数

1. Circle(L, T) → c
2. Point(c) → A
3. Point(c) → B
4. Point(c) → C
5. Segment(A, C) → a
6. Segment(C, B) → b
7. Segment(B, A) → d
8. OrthogonalLine(A, b) → e
9. OrthogonalLine(C, d) → f
10. OrthogonalLine(B, a) → g
11. Intersect(g, a) → D
12. Intersect(d, f) → E
13. Intersect(e, b) → F
14. Intersect(e, f) → G
15. Segment(A, F) → h
16. Segment(B, D) → i
17. Segment(C, E) → j
18. Angle(C, F, A) → α
19. Angle(B, E, C) → β
20. Angle(A, D, B) → γ