角的均值保持上方复制

GeoGebra 命令及参数

1. Segment(A, C) → f
2. Segment(A, B) → g
3. Angle(B, A, C) → α
4. Line(D, E) → h
5. Segment(D, F) → i
6. Line(A, B) → k
7. Line(A, C) → m
8. Line(D, F) → j
9. Circle(D, Segment[D, F]) → c
10. Intersect(c, h, 2) → G
11. Angle(G, D, F) → β
12. Circle(A, Segment[D, G]) → d
13. Intersect(d, m, 2) → H
14. Circle(H, Segment[G, F]) → e
15. Intersect(d, e, 1) → I
16. Segment(A, I) → l
17. Angle(H, A, I) → γ