使用向量和射线进行放大

GeoGebra 命令及参数

1. Polygon(A, B, C) → P, c, a, b
2. Dilate(A, SF, D) → A'
3. Dilate(B, SF, D) → B'
4. Dilate(C, SF, D) → C'
5. Polygon(A', B', C') → P', c', a', b'
6. Ray(D, A') → d
7. Ray(D, B') → e
8. Ray(D, C') → f
9. Vector(D, C) → u
10. Vector(D, C') → v
11. Vector(D, B) → w
12. Vector(D, B') → z
13. Vector(D, A) → g
14. Vector(D, A') → h
15. Polygon(B', A', C') → poly1, c'_1, b'_1, a'_1