圆心角 by James Monaghan

GeoGebra 命令及参数

1. Circle(O_3, N) → p
2. Point(p) → O_1
3. Point(p) → P
4. Segment(O_1, P) → q
5. Segment(P, O_3) → r
6. Point(p) → Q
7. Segment(O_3, Q) → s
8. Segment(Q, O_1) → t
9. Angle(P, O_3, Q) → ι
10. Angle(P, O_1, Q) → A
11. Polygon(E_1, H_1, G_1, F_1) → poly1, e_2, h_2, g_2, f_2
12. Angle(G_1, F_1, E_1) → λ
13. Angle(E_1, H_1, G_1) → ξ
14. Angle(F_1, E_1, H_1) → ο
15. Angle(H_1, G_1, F_1) → ρ