缩放变换：几何图形缩放与作图方法

GeoGebra 命令及参数

1. Polygon(A, C, B) → ABC, Line_{AC}, Line_{BC}, Line_{AB}
2. Dilate(A, k, CoD) → A'
3. Dilate(C, k, CoD) → C'
4. Dilate(B, k, CoD) → B'
5. Polygon(A', C', B') → A'B'C', Line_{A'C'}, Line_{B'C'}, Line_{A'B'}
6. Segment(CoD, A') → Line_{Cod-A'}
7. Segment(CoD, B') → Line_{Cod-B'}
8. Segment(CoD, C') → Line_{Cod-C'}
9. Segment(CoD, A) → Line_{CoD-A}
10. Segment(CoD, B) → Line_{CoD-B}
11. Segment(CoD, C) → Line_{CoD-C}