平行线与截线角度关系演示 by MissLinares

GeoGebra 命令及参数

1. Point(xAxis) → A_1
2. Point(xAxis) → B_1
3. Line(A_1, B_1) → A
4. Line(C_1, A) → B
5. Point(B) → F
6. Line(D, E) → C
7. Intersect(A, C) → G
8. Intersect(B, C) → H
9. Angle(D, G, A_1) → α
10. Angle(A_1, G, H) → β
11. Angle(H, G, B_1) → γ
12. Angle(B_1, G, D) → δ
13. Angle(G, H, C_1) → ε
14. Angle(C_1, H, E) → ζ
15. Angle(E, H, F) → η
16. Angle(F, H, G) → θ
17. Line(E, B) → d