三角形的内角和外角

GeoGebra 命令及参数

1. Segment(B, C) → b
2. Circle(B, Saiz) → d
3. Intersect(d, b, 1) → J
4. Angle(A, B, C) → Sd
5. If(Sd > 180°, 1, -1) → Arah
6. Angle(C, B, A) → α
7. Segment(A, B) → a
8. Intersect(d, a, 1) → E
9. If(α < 180°, CircleSector[B, J, E], CircleSector[B, E, J]) → g
10. Angle(B, A, C) → γ
11. Segment(C, A) → c
12. Circle(A, Saiz) → f
13. Intersect(f, a, 1) → I
14. Intersect(f, c, 1) → H
15. Circle(C, Saiz) → e
16. Intersect(e, b, 1) → F
17. Intersect(e, c, 1) → G
18. Vector(B, C) → u_1
19. Rotate(g, ((((-m) * Arah) * 180))°, B) → g'
20. Translate(g', Vector[(m * u_1)]) → g''
21. If(γ < 180°, CircleSector[A, I, H], CircleSector[A, H, I]) → k
22. Rotate(k, (((m * Arah) * 180))°, A) → k'
23. Vector(A, C) → u_2
24. Translate(k', Vector[(m * u_2)]) → k''
25. Angle(A, C, B) → β
26. If(β < 180°, CircleSector[C, G, F], CircleSector[C, F, G]) → h
27. Line(C, a) → i
28. Line(A, B) → j
29. Point(j) → D
30. Segment(B, D) → l
31. Intersect(d, j, 2) → K
32. Angle(K, B, J) → δ
33. If(δ < 180°, CircleSector[B, K, J], CircleSector[B, J, K]) → p
34. Vector(A, B) → v_1
35. Vector(C, B) → v_2
36. Translate(k, Vector[(n * v_1)]) → k'_1
37. Rotate(h, (((n * Arah) * 180))°, C) → h'
38. Translate(h', Vector[(n * v_2)]) → h''
39. SelectedIndex(Bahasa) → nn