使用滑块调整缩放因子的几何放缩

GeoGebra 命令及参数

1. Polygon(A, B, C) → Original, c, a, b
2. Polygon(Dilate[A, ScaleFactor, Center], Dilate[B, ScaleFactor, Center], Dilate[C, ScaleFactor, Center]) → Image, d, e, f
3. Intersect(d, f) → A'
4. Intersect(e, f) → C'
5. Intersect(d, e) → B'
6. Segment(Center, A) → k
7. Segment(Center, A') → l
8. Segment(Center, B) → m
9. Segment(Center, B') → n
10. Segment(Center, C) → p
11. Segment(Center, C') → q
12. Angle(B', C', A') → α
13. Angle(B, C, A) → β
14. Angle(C', A', B') → γ
15. Angle(C, A, B) → δ
16. Angle(A, B, C) → ε
17. Angle(A', B', C') → ζ