正弦定律 by Andrea Guerra

GeoGebra 命令及参数

1. Circle(A, c_1) → d
2. Intersect(d, b_3, 2) → B
3. Segment(A, B) → c
4. Circle(B, a_3) → f
5. Rotate(B, α_1, A) → B'
6. Angle(B, A, B') → α
7. Ray(A, B') → b
8. Intersect(f, b, 1) → C_1
9. Intersect(f, b, 2) → C_2
10. Segment(C_1, B) → a_1
11. Segment(C_2, B) → a_2
12. Segment(C_1, A) → b_1
13. Segment(A, C_2) → b_2
14. Polygon(A, B, C_1) → poly1, c_2, a, b_4
15. Polygon(A, B, C_2) → poly2, c_3, a_4, b_5
16. Angle(C_1, B, A) → β
17. Angle(A, C_1, B) → γ
18. Angle(A, C_2, B) → γ_2
19. Angle(C_2, B, A) → β_2