探究多边形内角和的规律

GeoGebra 命令及参数

1. Polygon(A, B, n) → poly1, a, j, k, l, m, p, q, r, s, t, a_1, b, b_1, C, D, E, F, G, H, I, J, K, c, L, M, N, O, P, Q, R, S, T, d, e, f, g, h, i
2. Segment(B, D) → c_1
3. Segment(B, E) → d_1
4. Segment(B, F) → e_1
5. Segment(B, G) → f_1
6. Segment(B, H) → g_1
7. Segment(B, I) → h_1
8. Segment(B, J) → i_1
9. Segment(B, K) → j_1
10. Segment(B, L) → k_1
11. Segment(B, M) → l_1
12. Segment(B, N) → m_1
13. Segment(B, O) → n_1
14. Segment(B, P) → p_1
15. Segment(B, Q) → q_1
16. Segment(B, R) → r_1
17. Segment(B, S) → s_1
18. Segment(B, T) → t_1