Spiral George B
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EQUILATERAL TRIANGLE SPIRAL
This example demonstrates a spiral using function and parametric equations. It involves constructing complex spiral shapes using GeoGebra commands such as Polygon, OrthogonalLine, and Intersect. Suitable for high school and above students to explore.
GeoGebra Commands & Parameters
Polygon(A, B, 3) → poly1, f, g, h, COrthogonalLine(C, f) → iIntersect(i, f) → DSegment(C, D) → jPolygon(C, D, 3) → poly2, k, l, m, EIntersect(g, l) → FSegment(C, F) → nPolygon(C, F, 3) → poly3, p, q, r, GIntersect(m, q) → HSegment(C, H) → sPolygon(C, H, 3) → poly4, t, a, b, IIntersect(r, a) → JSegment(C, J) → cPolygon(C, J, 3) → poly5, d, e, f_1, KIntersect(b, e) → LSegment(C, L) → g_1Polygon(C, L, 3) → poly6, h_1, i_1, j_1, MIntersect(f_1, i_1) → NSegment(C, N) → k_1Polygon(C, N, 3) → poly7, l_1, m_1, n_1, OIntersect(j_1, m_1) → PSegment(C, P) → p_1Polygon(C, P, 3) → poly8, q_1, r_1, s_1, QIntersect(n_1, r_1) → RSegment(C, R) → t_1Polygon(C, R, 3) → poly9, a_1, b_1, c_1, SIntersect(s_1, b_1) → TSegment(C, T) → d_1Polygon(C, T, 3) → poly10, e_1, f_2, g_2, UIntersect(c_1, f_2) → VSegment(C, V) → h_2Intersect(j, k) → D_1Intersect(j, k) → E_1Intersect(g, n) → H_1Intersect(m, s) → K_1Intersect(b, g_1) → P_1Intersect(f_1, k_1) → S_1Polygon(K, C, J) → t1, j_4, k_4, c_4Polygon(M, C, L) → t2, l_4, m_4, c_5Polygon(Q, C, P) → t3, p_4, q_4, c_6Polygon(O, C, N) → t4, n_4, o, c_7Polygon(C, S, R) → t5, r_4, c_8, s_4Polygon(C, S, R) → t6, r_5, c_9, s_5Polygon(Q, C, P) → t7, p_5, q_5, c_{10}Distance(A, B) → distanceABDistance(D, E) → distanceDEDistance(F, G) → distanceFGDistance(H, I) → distanceHIPolygon(C, V, 3) → poly11, i_2, j_2, k_2, WIntersect(poly10, poly11) → Z, A_1, B_1, C_1, F_1, G_1, I_1Polygon(I_1, G_1, 3) → poly12, l_2, m_2, n_2, J_1
AI Drawing Prompt Reference
Draw a complex spiral shape using function and parametric equations. Start by constructing a triangle, then create multiple subsequent triangles, each connecting to the previous triangle's vertex and forming a perpendicular line to its edge, creating a spiraling effect. Pay attention to the size and positional relationships of each triangle to ensure the overall spiral pattern is clear and ascending.
The prompt above was compiled from the original drawing commands and is for reference only.