特殊直角三角形 by Andrew

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Point(xAxis) → B
3. Circle(A, B) → c
4. Point(xAxis) → D
5. Line(A, D) → b
6. Intersect(c, xAxis, 1) → F
7. Rotate(F, α, A) → P
8. OrthogonalLine(P, b) → a_2
9. Intersect(b, a_2) → C
10. Segment(P, C) → d
11. Segment(A, P) → e
12. Intersect(b, e) → E
13. Segment(C, E) → f
14. Angle(E, C, P) → γ
15. Angle(C, A, P) → β
16. Polygon(A, C, P) → poly1, p, a_1, c_1
17. Dilate(A, a, G) → A'
18. Dilate(C, a, G) → C'
19. Dilate(P, a, G) → P'
20. Polygon(A', C', P') → poly1', p', a', c'