线反射与测量

GeoGebra 命令及参数

1. Polygon(A, B, C, D) → Preimage, a, b, c, d
2. Line(E, F) → e
3. Mirror(A, e) → A'
4. Mirror(B, e) → B'
5. Mirror(C, e) → C'
6. Mirror(D, e) → D'
7. Polygon(A', B', C', D') → Image, a', b', c', d'
8. Segment(A, A') → g
9. Segment(D, D') → h
10. Segment(C, C') → i
11. Segment(B, B') → j
12. Intersect(h, e) → G
13. Intersect(i, e) → H
14. Intersect(g, e) → I
15. Intersect(j, e) → J
16. Angle(A, I, G) → α
17. Distance(C', H) → distanceC'H
18. Distance(H, C) → distanceHC
19. Distance(D', G) → distanceD'G
20. Distance(G, D) → distanceGD
21. Distance(A', I) → distanceA'I
22. Distance(I, A) → distanceIA
23. Distance(B', J) → distanceB'J
24. Distance(J, B) → distanceJB