正方形的重心

GeoGebra 命令及参数

1. Point(Circle[A, a]) → B
2. Segment(A, B) → f_2
3. Point(Circle[A, b]) → D
4. Segment(A, D) → g_2
5. Point(Circle[D, a]) → C
6. Segment(D, C) → h_2
7. Polygon(A, B, C, D) → q4, i_2, j_2, k_2, l_2
8. Segment(A, C) → m_2
9. Centroid(q4) → G
10. Midpoint(j_2) → I
11. Midpoint(h_2) → J
12. Midpoint(g_2) → E
13. Midpoint(f_2) → F
14. Segment(B, G) → n_2
15. Segment(I, A) → p_2
16. Segment(A, J) → q_2
17. Segment(D, G) → r_2
18. Segment(E, C) → s_2
19. Segment(F, C) → t_2
20. Segment(E, B) → c_2
21. Segment(F, D) → d_2
22. Intersect(n_2, p_2) → M
23. Intersect(q_2, r_2) → L
24. Intersect(m_2, c_2) → H
25. Segment(I, D) → e_2
26. Segment(J, B) → f_3
27. Intersect(m_2, e_2) → K
28. Polygon(H, M, K, L) → q5, g_3, v_1, h_3, w_1
29. Area(q4) → o_2
30. Area(q5) → u_2