Equilateral Triangle Transformations
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This example demonstrates transformations of an equilateral triangle, involving key mathematical concepts such as properties of equilateral triangles, rotation, and dilation. Using GeoGebra commands like Polygon, Dilate, and Rotate, it dynamically shows how an equilateral triangle changes under different transformations. Suitable for middle school and above students and teachers to understand the basic principles of geometric transformations.
GeoGebra Commands & Parameters
Polygon(A, B, 3) → poly1, f, g, h, CPolygon(D, E, 3) → poly2, i, j, k, FDilate(A, If[0 < a ≤ 1, 1 - a, 0], B) → A'Dilate(D, If[0 < a ≤ 1, 1 - a, 0], E) → D'Segment(A, A') → lSegment(D, D') → mRotate(B, If[1 < a ≤ 2, ((a - 1) * pi / 3), pi / 3], A) → B'Rotate(E, If[1 < a ≤ 2, ((a - 1) * pi / 3), pi / 3], D) → E'Segment(A, B') → nSegment(D, E') → pRotate(A, If[2 < a ≤ 3, ((a - 2) * pi / 3), pi / 3], C) → A'_{1}Rotate(D, If[2 < a ≤ 3, ((a - 2) * pi / 3), pi / 3], F) → D'_{1}Segment(C, A'_{1}) → qSegment(F, D'_{1}) → rMidpoint(A, D) → GMidpoint(B, E) → HMidpoint(C, F) → IDilate(C, If[4 < a ≤ 5, 5 - a, 0], I) → C'Segment(C, C') → sDilate(I, If[5 < a ≤ 6, 6 - a, 0], F) → I'Segment(I, I') → tRotate(C, If[6 < a ≤ 7, ((a - 6) * pi), pi], I) → C'_{1}Segment(I, C'_{1}) → bPolygon(G, H, I) → t1, i_1, g_1, h_1Dilate(A, If[7 < a ≤ 8, 8 - a, 0], G) → A'_{2}Segment(A, A'_{2}) → cDilate(G, If[8 < a ≤ 9, 9 - a, 0], D) → G'Segment(G, G') → dRotate(A, If[9 < a ≤ 10, ((a - 9) * pi), pi], G) → A'_{3}Segment(G, A'_{3}) → eDilate(B, If[10 < a ≤ 11, 11 - a, 0], H) → B'_{1}Segment(B, B'_{1}) → f_1Dilate(H, If[11 < a ≤ 12, 12 - a, 0], E) → H'Segment(H, H') → j_1Rotate(B, If[12 < a ≤ 13, ((a - 12) * pi), pi], H) → B'_{2}Segment(H, B'_{2}) → k_1Dilate(G, If[14 < a ≤ 15, 15 - a, 0], H) → G'_{1}Segment(G, G'_{1}) → l_1Rotate(H, If[15 < a ≤ 16, ((a - 15) * pi / 3), pi / 3], G) → H'_{1}Segment(G, H'_{1}) → m_1Rotate(G, If[16 < a ≤ 17, ((a - 16) * pi / 3), pi / 3], I) → G'_{2}Segment(I, G'_{2}) → n_1
AI Drawing Prompt Reference
This graphic shows an equilateral triangle and its transformed points. First, two equilateral triangles are drawn. Then, each vertex is scaled and rotated to generate new points. Lines are connected between these points and the original points. Finally, a triangle formed by the midpoints of the corresponding vertices is drawn. The whole graphic dynamically demonstrates transformation relationships of equilateral triangles, suitable for geometric teaching.
The prompt above was compiled from the original drawing commands and is for reference only.