计算圆的面积

GeoGebra 命令及参数

1. Textfield(n) → CasillaDeEntrada1
2. Textfield(r) → CasillaDeEntrada2
3. Circle(C, r) → c
4. Point(c) → A
5. Rotate(C, a°, A) → C'
6. Line(A, C') → f
7. Intersect(c, f) → D, E
8. Polygon(E, A, n) → polígono1, g, l_1, B_2, J_3, K_3, L_3, M_3, N_3, O_3, P_3, Q_3, R_3, m_1, S_3, T_3, U_3, V_3, W_3, Z_3, A_4, B_4, C_4, D_4, n_1, E_4, F_4, G_4, H_4, I_4, J_4, K_4, p_1, q_1, r_1, s_1, t_1, a_1, b_1, h, c_1, d_1, e_1, f_2, g_2, h_2, i_2, j_2, k_2, l_2, i, m_2, n_2, p_2, q_2, r_2, s_2, t_2, a_2, b_2, p_4, j, q_4, r_4, s_4, t_4, a_4, b_4, c_4, d_4, e_4, f_5, k, g_5, h_5, i_5, j_5, k_5, l_5, m_5, n_5, p_5, q_5, q, r_5, s_5, t_5, a_5, b_5, F, G, H, I, R, h_1, T, U, V, W, Z, A_1, B_1, C_1, D_1, E_1, j_1, F_1, G_1, H_1, I_1, J_1, K_1, L_1, M_1, N_1, O_1, k_1, P_1, Q_1, R_1, S_1, T_1, U_1, V_1, W_1, Z_1, A_2
9. Line(C, A) → l
10. OrthogonalLine(C, g) → m
11. Line(C, E) → p
12. Intersect(c, m) → J, K
13. Line(J, g) → s
14. Intersect(s, l) → L
15. Intersect(p, s) → M
16. Polygon(M, L, n) → polígono2, t, e_2, I_3, L_4, M_4, N_4, O_4, P_4, Q_4, R_4, S_4, T_4, f_3, U_4, V_4, W_4, Z_4, A_5, B_5, C_5, D_5, E_5, F_5, g_3, G_5, H_5, I_5, J_5, K_5, L_5, M_5, h_3, i_3, j_3, k_3, l_3, m_3, n_3, b, p_3, q_3, r_3, s_3, t_3, a_3, b_3, c_3, d_3, e_3, d, f_4, g_4, h_4, i_4, j_4, k_4, l_4, m_4, n_4, c_5, e, d_5, e_5, f_6, g_6, h_6, i_6, j_6, k_6, l_6, m_6, f_1, n_6, p_6, q_6, r_6, s_6, t_6, a_6, b_6, c_6, d_6, g_1, e_6, f_7, g_7, h_7, i_7, N, O, P, Q, S, i_1, C_2, D_2, E_2, F_2, G_2, H_2, I_2, J_2, K_2, L_2, c_2, M_2, N_2, O_2, P_2, Q_2, R_2, S_2, T_2, U_2, V_2, d_2, W_2, Z_2, A_3, B_3, C_3, D_3, E_3, F_3, G_3, H_3
17. Area(polígono1) → v
18. Area(polígono2) → w
19. IterationList(x + 1, 0, 200) → l1
20. Segment(A, C) → RADIUS