相似变换演示 by Wendy Sanchez

GeoGebra 命令及参数

1. Segment(A, B) → f
2. Segment(B, C) → g
3. Segment(C, A) → h
4. Dilate(A, 2, D) → A'
5. Dilate(B, 2, D) → B'
6. Segment(A', B') → f'
7. Dilate(B, 2, D) → B'_1
8. Dilate(C, 2, D) → C'
9. Segment(B'_1, C') → g'
10. Dilate(C, 2, D) → C'_1
11. Dilate(A, 2, D) → A'_1
12. Segment(C'_1, A'_1) → h'
13. Segment(D, A') → i
14. Distance(D, A') → distanceDA'
15. Distance(D, A) → distanceDA
16. Segment(C', D) → j
17. Distance(D, C') → distanceDC'
18. Distance(D, C) → distanceDC
19. Segment(D, B') → k
20. Distance(D, B') → distanceDB'
21. Distance(D, B) → distanceDB