滑动第2页：四边形的相似变换

GeoGebra 命令及参数

1. Polygon(A, B, C, D) → poly1, a, b, c, d
2. Dilate(A, ScaleFactor, E) → A'
3. Dilate(B, ScaleFactor, E) → B'
4. Dilate(C, ScaleFactor, E) → C'
5. Dilate(D, ScaleFactor, E) → D'
6. Polygon(A', B', C', D') → poly1', a', b', c', d'
7. Distance(A, B) → distanceAB
8. Midpoint(A, B) →
9. Distance(B, C) → distanceBC
10. Midpoint(B, C) →
11. Distance(C, D) → distanceCD
12. Midpoint(C, D) →
13. Distance(D, A) → distanceDA
14. Midpoint(D, A) →
15. Distance(B', C') → distanceB'C'
16. Midpoint(B', C') →
17. Distance(C', D') → distanceC'D'
18. Midpoint(C', D') →
19. Distance(D', A') → distanceD'A'
20. Midpoint(D', A') →
21. Distance(A', B') → distanceA'B'
22. Midpoint(A', B') →
23. Line(E, C) → f
24. Line(E, D) → g
25. Line(E, A) → h
26. Line(E, B) → i