等腰三角形与多边形

GeoGebra 命令及参数

1. Polygon(A, B, C) → poly1, c, a, b
2. Point(b) → S
3. Point(a) → R
4. Point(c) → P
5. Line(A, D) → j
6. Point(j) → A'
7. Line(A, A') → d
8. Point(d) → A''
9. OrthogonalLine(A'', d) → p
10. Line(B, d) → f
11. Line(S, f) → i
12. Line(P, f) → h
13. Line(R, f) → g
14. Intersect(f, p) → H
15. Line(C, d) → e
16. AngularBisector(e, f) → q,
17. Intersect(e, p) → I
18. Circle(I, H) → r
19. Intersect(r, q) → L, M
20. Ray(A'', M) → s
21. OrthogonalLine(M, s) → t
22. Intersect(e, t) → C''
23. Intersect(t, f) → B''
24. Polygon(A'', C'', B'') → poly5, n, d_2, o
25. Intersect(o, h) → P''
26. Intersect(d_2, g) → R''
27. Intersect(n, i) → S''
28. Polygon(P'', R'', S'') → poly6, s'', p'', r''
29. Point(f) → B'
30. Point(e) → C'
31. Polygon(A', B', C') → poly2, c', a', b'
32. Intersect(p, q) → J
33. Intersect(b', i) → S'
34. Polygon(P, R, S) → poly3, s_1, p_1, r_1
35. Intersect(c', h) → P'
36. Intersect(a', g) → R'
37. Polygon(P', R', S') → poly4, s', p', r'