正多边形与毕达哥拉斯定理

GeoGebra 命令及参数

1. Segment(A, B) → a
2. OrthogonalLine(A, a) → b
3. Point(b) → C
4. Segment(C, A) → c
5. Segment(C, B) → d
6. Polygon(A, C, Sides) → poly1, e, m_1, D, G, J, M, P, S, V, A_1, f, g, n, r, a_1, d_1, g_1, j_1
7. Polygon(C, B, Sides) → poly2, h, n_1, E, H, K, N, Q, T, W, B_1, i, j, p, s, b_1, e_1, h_1, k_1
8. Polygon(B, A, Sides) → poly3, k, p_1, F, I, L, O, R, U, Z, C_1, l, m, q, t, c_1, f_1, i_1, l_1
9. Angle(B, A, C) → α
10. PointIn(poly1) → Pointpoly1
11. PointIn(poly3) → Pointpoly3
12. PointIn(poly2) → Pointpoly2