内接多边形：几何作图与数学概念

GeoGebra 命令及参数

1. Segment(B, A) → a
2. Semicircle(B, A) → d
3. Semicircle(A, B) → e
4. Point(e) → C
5. Polygon(A, C, B) → poly1, b, a_1, c
6. Angle(A, C, B) → α
7. Circle(D, 8) → f
8. Point(f) → E
9. Point(f) → F
10. Point(f) → G
11. Point(f) → H
12. Polygon(E, F, G, H) → poly2, e_1, f_1, g, h
13. Angle(H, E, F) → β
14. Angle(E, F, G) → γ
15. Angle(F, G, H) → δ
16. Angle(G, H, E) → ε
17. Midpoint(A, B) → I