角度与直线交点演示

GeoGebra 命令及参数

1. Line(A, B) → a
2. Line(C, a) → b
3. Line(D, E) → c
4. Intersect(a, c) → F
5. Intersect(b, c) → G
6. Point(a) → H
7. Point(b) → I
8. Point(a) → J
9. Point(b) → K
10. Point(c) → L
11. Point(c) → M
12. Ray(F, H) → d
13. Ray(F, L) → e
14. Ray(F, J) → f
15. Ray(F, M) → g
16. Ray(G, K) → h
17. Ray(G, L) → i
18. Ray(G, I) → j
19. Ray(G, M) → k
20. Angle(d, e) → α
21. Angle(e, f) → β
22. Angle(f, g) → γ
23. Angle(g, d) → δ
24. Angle(j, i) → ε
25. Angle(i, h) → ζ
26. Angle(h, k) → η
27. Angle(k, j) → θ