旋转正方形

GeoGebra 命令及参数

1. Polygon(A, B, 4) → poly1, f, g, h, i, C, D
2. Segment(D, B) → j
3. Segment(A, C) → k
4. Intersect(j, k) → E
5. Circle(E, 1) → c
6. Point(c) → F
7. Polygon(E, F, 4) → poly2, l, m, n, p, G, H
8. Intersect(h, p) → I
9. Intersect(g, l) → J
10. Intersect(h, l) → K
11. Intersect(i, p) → L
12. Intersect(i, l) → M
13. Intersect(f, p) → N
14. Intersect(f, l) → O
15. Intersect(g, p) → P
16. Polygon(O, E, P, B) → q1, o, e, p_1, b
17. Polygon(E, J, R, I) → q2, e_1, j_1, r, i_1
18. Polygon(L, Q, K, E) → q3, l_1, q, k_1, e_2
19. Polygon(E, M, A, N) → q4, e_3, m_1, a, n_1