相似三角形探索 by Ben Graber

GeoGebra 命令及参数

1. Point(Circle[A, 2]) → B
2. Segment(A, B) → a
3. Point(Circle[B, 1.5]) → C
4. Segment(B, C) → b
5. Polygon(A, B, C) → poly1, c, a_1, b_1
6. Angle(B, A, C) → α
7. Angle(C, B, A) → β
8. Angle(A, C, B) → γ
9. Point(Circle[D, (2 * ScaleFactor)]) → E
10. Segment(D, E) → d
11. Point(Circle[E, (1.5 * ScaleFactor)]) → F
12. Segment(E, F) → e
13. Polygon(D, E, F) → poly2, f, d_1, e_1
14. Angle(E, D, F) → δ
15. Angle(D, F, E) → ε
16. Angle(F, E, D) → ζ