寻找补角 by Suzanne Schultz

GeoGebra 命令及参数

1. Line(A, B) → a
2. Point(a) → C
3. OrthogonalLine(C, a) → b
4. Segment(A, B) → d
5. Point(b) → D
6. Segment(C, D) → e
7. Rotate(D, -α, C) → E
8. Angle(E, C, D) → β
9. Ray(C, E) → c
10. Angle(B, C, E) → γ
11. Polygon(F, G, H, I) → P, f, g, h, i
12. Vector((8, 6), (8 + j, 6)) → u
13. Translate(F, u) → F'
14. Translate(G, u) → G'
15. Translate(H, u) → H'
16. Translate(I, u) → I'
17. Polygon(F', G', H', I') → P', f', g', h', i'