根号2正方形
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①本范例演示了如何通过构造正方形和相似三角形来展示根号2的几何意义;②涉及的核心数学概念包括根号、正方形、有理数、算术运算、相似三角形、函数图像和对称性;③作图要点——从下方『构造摘要』提炼用到了Polygon(多边形)、Point(点)、Intersect(交点)、Segment(线段)等GeoGebra命令/对象;④适合初中及以上学生学习和理解几何作图与代数关系的结合。
GeoGebra 命令及参数
Polygon(B, D, C, A) → q1, b, d, c, aPoint(b) → EPolygon(B, E, F, A) → q2, b_1, e, f, a_1Polygon(D, E, 4) → poly1, g, h, i, j, G, HPolygon(H, G, 4) → poly2, k, l, m, n, I, JPolygon(C, J, 4) → poly3, p, q, r, s, K, LPolygon(L, K, 4) → poly4, t, f_1, g_1, h_1, M, NPolygon(F, N, 4) → poly5, i_1, j_1, k_1, l_1, O, PPolygon(P, O, 4) → poly6, m_1, n_1, p_1, q_1, Q, RPolygon(I, R, 4) → poly7, r_1, s_1, t_1, c_1, S, TPolygon(T, S, 4) → poly8, d_1, e_1, f_2, g_2, U, VPolygon(M, V, 4) → poly9, h_2, i_2, j_2, k_2, W, ZPolygon(Z, W, 4) → poly10, l_2, m_2, n_2, p_2, A_1, B_1Polygon(Q, B_1, 4) → poly11, q_2, r_2, s_2, t_2, C_1, D_1Polygon(D_1, C_1, 4) → poly12, a_2, b_2, c_2, d_2, E_1, F_1Polygon(U, F_1, 4) → poly13, e_2, f_3, g_3, h_3, G_1, H_1Polygon(H_1, G_1, 4) → poly14, i_3, j_3, k_3, l_3, I_1, J_1Polygon(A_1, J_1, 4) → poly15, m_3, n_3, p_3, q_3, K_1, L_1Polygon(L_1, K_1, 4) → poly16, r_3, s_3, t_3, a_3, M_1, N_1Polygon(E_1, N_1, 4) → poly17, b_3, c_3, d_3, e_3, O_1, P_1Polygon(P_1, O_1, 4) → poly18, f_4, g_4, h_4, i_4, Q_1, R_1Polygon(I_1, R_1, 4) → poly19, j_4, k_4, l_4, m_4, S_1, T_1Polygon(T_1, S_1, 4) → poly20, n_4, p_4, q_4, r_4, U_1, V_1Intersect(k_3, q_4) → W_1Point(k_3) → Z_1Segment(W_1, Z_1) → s_4Point(t_3) → A_2Segment(Z_1, A_2) → t_4
AI 绘图提示语参考
绘制两个正方形,其中一个正方形的边长是另一个正方形边长的根号2倍。首先绘制一个正方形ABCD,然后以边BC为边长的根号2倍,构造另一个正方形BEFG,接着以边EF为边长的根号2倍,构造第三个正方形HIJK,以此类推,直到构造出多个正方形,它们的边长依次为根号2的幂次。最后连接特定点,展示正方形边长之间的关系。
以上提示语为根据原始绘图命令整理而来,仅供参考。