正多边形对称轴与旋转对称关系
几何画板及绘图内容加载中,请稍等……
①本范例演示正多边形的对称轴与其旋转对称性的关系;②涉及核心数学概念包括对称性、旋转对称、正多边形几何性质;③作图要点运用了Point, Segment, Polygon, LineBisector, Intersect, Rotate, Circle等GeoGebra命令与对象;④适合高中数学教学与几何学习,用于直观理解正多边形的对称特性。
GeoGebra 命令及参数
Point(Circle[A, Size]) → BSegment(A, B) → bPoint(Circle[C, Size]) → DSegment(C, D) → cPoint(Circle[E, Size]) → FSegment(E, F) → dPoint(Circle[G, Size]) → HSegment(G, H) → ePoint(Circle[I, Size]) → JSegment(I, J) → fPolygon(A, B, 3) → poly1, g, h, i, KPolygon(C, D, 4) → poly2, j, k, l, m, L, MPolygon(E, F, 5) → poly3, n, p, q, r, s, N, O, PPolygon(G, H, 6) → poly4, t, T, a_1, b_1, c_1, d_1, e_1, Q, R, SPolygon(I, J, 7) → poly5, f_1, W, Z, A_1, g_1, h_1, i_1, j_1, k_1, l_1, U, VLineBisector(l) → m_1LineBisector(k) → n_1LineBisector(r) → p_1LineBisector(q) → q_1LineBisector(p) → r_1LineBisector(d) → s_1LineBisector(s) → t_1Intersect(m_1, l) → B_1Intersect(n_1, k) → C_1Intersect(n_1, m) → D_1Intersect(m_1, c) → E_1Segment(B_1, E_1) → a_2Segment(C_1, D_1) → b_2Intersect(a_2, b_2) → F_1Intersect(l, a_2) → G_1Intersect(p_1, r) → H_1Intersect(q_1, q) → I_1Intersect(r_1, p) → J_1Intersect(s_1, d) → K_1Intersect(t_1, s) → L_1Intersect(p_1, q_1) → M_1Segment(F, H_1) → c_2Segment(O, K_1) → d_2Segment(N, L_1) → e_2Segment(P, J_1) → f_2Segment(E, I_1) → g_2LineBisector(j_1) → h_2LineBisector(i_1) → i_2LineBisector(h_1) → j_2LineBisector(g_1) → k_2LineBisector(f) → l_2LineBisector(l_1) → m_2LineBisector(k_1) → n_2Intersect(h_2, j_1) → N_1Intersect(i_2, i_1) → O_1Intersect(j_2, h_1) → P_1Intersect(k_2, g_1) → Q_1Intersect(h_2, i_2) → R_1Intersect(l_2, f) → S_1Intersect(m_2, l_1) → T_1Intersect(n_2, k_1) → U_1Segment(W, S_1) → p_2Segment(Q_1, Z) → q_2Segment(A_1, P_1) → r_2Segment(I, O_1) → s_2Segment(U, U_1) → t_2Segment(J, N_1) → a_3Segment(V, T_1) → b_3LineBisector(c_1) → c_3LineBisector(b_1) → d_3LineBisector(a_1) → e_3LineBisector(h) → f_3LineBisector(i) → g_3LineBisector(b) → h_3Intersect(f_3, h) → V_1Intersect(h_3, b) → W_1Intersect(g_3, i) → Z_1Intersect(e_3, d_1) → A_2Intersect(c_3, c_1) → B_2Intersect(d_3, b_1) → C_2Intersect(e_3, a_1) → D_2Intersect(c_3, e) → E_2Intersect(d_3, e_1) → F_2Intersect(f_3, g_3) → G_2Intersect(c_3, d_3) → H_2Segment(W_1, K) → i_3Segment(B, Z_1) → j_3Segment(A, V_1) → k_3Segment(E_2, B_2) → l_3Segment(F_2, C_2) → m_3Segment(Q, T) → n_3Segment(D_2, A_2) → p_3Segment(H, S) → q_3Segment(G, R) → r_3Rotate(poly1, α, G_2) → poly1'Rotate(poly2, α, F_1) → poly2'Rotate(poly3, α, M_1) → poly3'Rotate(poly4, α, H_2) → poly4'Rotate(poly5, α, R_1) → poly5'Intersect(l, m) → I_2Intersect(k, l) → J_2Segment(D, I_2) → s_3Segment(C, J_2) → t_3Intersect(d_1, p_3) → K_2Intersect(d_1, e_1) → L_2Intersect(r, s) → M_2Intersect(p, q) → N_2Intersect(q, r) → O_2Intersect(c_1, d_1) → P_2Intersect(b_1, c_1) → Q_2Intersect(a_1, b_1) → R_2Intersect(k_1, l_1) → S_2Intersect(j_1, k_1) → T_2Intersect(h_1, i_1) → U_2Intersect(g_1, h_1) → V_2Intersect(h, i) → W_2Circle(G_2, B) → c_4Circle(F_1, D) → d_4Circle(M_1, F) → e_4Circle(H_2, H) → f_4Circle(R_1, J) → g_4
AI 绘图提示语参考
绘制正多边形及其对称轴。首先绘制一个正三角形,接着绘制一个正方形、正五边形和正六边形、正七边形。然后找到每个正多边形的中心,并通过中心绘制对称轴。最后,连接对称轴的交点,形成新的线段,这些线段将帮助展示正多边形的对称性。
以上提示语为根据原始绘图命令整理而来,仅供参考。