角平分线演示

GeoGebra 命令及参数

1. Segment(A, B) → a
2. Rotate(B, Angle, A) → B'
3. Angle(B, A, B') → α
4. Segment(A, B') → b
5. Point(Circle[A, abs(Compass)]) → C
6. Segment(A, C) → c
7. CircleArc(A, C, D) → d
8. Intersect(d, b) → E,
9. Intersect(d, a) → F,
10. Point(Circle[E, abs(Compass)]) → G
11. Segment(E, G) → e
12. CircleArc(E, G, H) → f
13. Point(Circle[F, abs(Compass)]) → I
14. Segment(F, I) → g
15. CircleArc(F, I, J) → h
16. Intersect(f, h) → K, , ,
17. Line(A, K) → i
18. Angle(a, i) → β