正弦定律与三角形作图

GeoGebra 命令及参数

1. Polygon(A, B, C) → poly1, a, c, b
2. Angle(C, B, A) → α
3. Angle(B, A, C) → β
4. Angle(A, C, B) → γ
5. Midpoint(A, B) → D
6. Midpoint(A, C) → E
7. Midpoint(B, C) → F
8. Angle(C, B, A) → δ
9. Angle(B, A, C) → ε
10. Angle(A, C, B) → ζ
11. Circle(B, 1) → d
12. AngularBisector(A, B, C) → f
13. Circle(C, 1) → g
14. Circle(A, 1) → h
15. AngularBisector(A, C, B) → i
16. AngularBisector(B, A, C) → j
17. Intersect(d, f, 2) → G
18. Intersect(h, j, 2) → H
19. Intersect(g, i, 2) → I