轴反射

GeoGebra 命令及参数

1. Polygon(A, B, C) → t1, c, a, b
2. Segment(D, E) → f
3. OrthogonalLine(A, f) → g
4. Intersect(g, f) → F
5. Angle(D, F, A) → α
6. Segment(F, A) → h
7. Mirror(A, f) → A'
8. Segment(F, A') → i
9. OrthogonalLine(B, f) → j
10. Intersect(j, f) → G
11. Segment(B, G) → k
12. Mirror(B, f) → B'
13. Segment(G, B') → l
14. OrthogonalLine(C, f) → m
15. Intersect(m, f) → H
16. Segment(H, C) → n
17. Mirror(C, f) → C'
18. Segment(H, C') → p
19. Polygon(A', B', C') → t1', c', a', b'