基于c和a+b的矩形三角形构造

GeoGebra 命令及参数

1. Point(xAxis) → A
2. Point(xAxis) → B_1
3. Intersect(xAxis, yAxis) → O
4. Line(A_1, xAxis) → f
5. Line(A_2, yAxis) → g
6. Line(A, yAxis) → h
7. Line(A_3, xAxis) → i
8. Intersect(g, i) → E
9. Intersect(f, g) → F
10. Intersect(f, h) → G
11. Intersect(h, i) → H
12. Polygon(E, F, G, H) → poly1, e, f_1, g_1, h_1
13. Point(xAxis) → B
14. Circle(O, B_1) → c_1
15. Point(c_1) → C
16. Tangent(C, c_1) → j,
17. Tangent(C_1, c_1) → k, a_1
18. Intersect(j, k) → D
19. Circle(O, D) → d
20. Intersect(d, g_1, 2) → I
21. Intersect(d, f_1, 2) → J
22. Intersect(d, e, 2) → K
23. Intersect(d, h_1, 2) → L
24. Polygon(J, K, L, I) → poly2, j_1, k_1, l, i_1
25. Segment(L, H) → a
26. Segment(H, I) → b
27. Segment(L, I) → c
28. OrthogonalLine(L, h_1) → s
29. OrthogonalLine(I, g_1) → t
30. Intersect(s, t) → M
31. Intersect(t, e) → N
32. Intersect(e, h_1) → P
33. Polygon(L, M, N, P) → poly3, l_1, m_1, n_1, p_1
34. Intersect(s, f_1) → Q
35. Intersect(t, g_1) → R
36. Intersect(f_1, g_1) → S
37. Polygon(Q, M, R, S) → poly4, q_1, m_2, r, s_1
38. Segment(B_1, O) → r_1
39. Segment(O, A) → t_1
40. Polygon(L, R, H) → poly5, h_2, l_2, r_2