平行线与横截线 by Jason Wofsey

GeoGebra 命令及参数

1. Line(A, B) → a
2. Line(C, a) → b
3. Point(a) → G
4. Point(b) → H
5. Line(G, H) → h
6. Distance(G, H) → distanceGH
7. Segment(A, G) → i
8. Point(b) → D
9. Line(A, D) → c
10. Circle(D, Segment[A, D]) → d
11. Intersect(d, c, 2) → E
12. Circle(E, Segment[D, E]) → e
13. Intersect(e, c, 2) → F
14. Line(E, b) → f
15. Line(F, f) → g
16. Intersect(h, f) → I
17. Intersect(h, g) → J
18. Distance(H, I) → distanceHI
19. Distance(I, J) → distanceIJ
20. Segment(A, D) → j
21. Segment(D, E) → k
22. Segment(E, F) → l
23. Segment(D, H) → m
24. Segment(E, I) → n
25. Segment(F, J) → p