缩放变换：观察图形变化与几何性质

GeoGebra 命令及参数

1. Segment(A, B) → f
2. Dilate(A, k, C) → A'
3. Dilate(B, k, C) → B'
4. Segment(A', B') → f'
5. Segment(C, A) → g
6. Segment(C, B) → i
7. Segment(A, A') → h
8. Segment(B, B') → j
9. OrthogonalLine(C, g) → l
10. OrthogonalLine(A', h) → m
11. Circle(C, 1.5) → c
12. Intersect(c, l, 2) → D
13. OrthogonalLine(D, l) → n
14. OrthogonalLine(C, j) → p
15. OrthogonalLine(B', j) → q
16. Intersect(c, p, 1) → E
17. OrthogonalLine(E, p) → r
18. Intersect(q, r) → F
19. Intersect(m, n) → G
20. Point(m) → H
21. OrthogonalLine(H, m) → s
22. Intersect(l, s) → I
23. Segment(H, I) → t
24. Line(C, E) → a
25. Point(q) → J
26. OrthogonalLine(J, q) → b
27. Intersect(a, b) → K
28. Segment(J, K) → d