天鹅座几何图形演示

GeoGebra 命令及参数

1. Polygon(A, B, 5) → poly1, f_2, g_2, h_2, i, j, C, D, E
2. Dodecahedron(poly1, true) → a_3, F, O, P, Q, R, S, T, faceAEIOJ, faceABFKJ, faceBCGLF, faceCDHMG, G, faceDEINH, faceINSTO, faceJKPTO, faceFKPQL, faceGLQRM, faceHMRSN, facePQRST, edgeAJ, edgeEI, edgeIO, H, edgeJO, edgeJK, edgeFK, edgeBF, edgeFL, edgeGL, edgeCG, edgeGM, edgeHM, edgeDH, I, edgeHN, edgeIN, edgeNS, edgeST, edgeOT, edgePT, edgeKP, edgePQ, edgeLQ, edgeQR, J, edgeMR, edgeRS, K, L, M, N
3. Polygon(D, E, A, B, C) → poly2, d, e, a, b, c
4. Polygon(I, E, A, J, O) → poly3, ı, e_1, a_2, j_1, o
5. Midpoint(D, E) → U
6. Midpoint(D, C) → V
7. Midpoint(E, A) → W
8. Circle(V, U, W) → k
9. Midpoint(E, I) → Z
10. Midpoint(I, O) → A_1
11. Midpoint(O, J) → B_1
12. Circle(Z, A_1, B_1) → p
13. Point(p) → C_1
14. Point(k) → D_1
15. Centroid(poly2) → E_1
16. Centroid(poly3) → F_1
17. Line(D_1, E_1) → l
18. Line(C_1, F_1) → m
19. Intersect(m, p, 1) → G_1
20. Intersect(k, l, 2) → H_1
21. Segment(D_1, H_1) → n
22. Segment(C_1, G_1) → q
23. Segment(H_1, C_1) → r
24. Segment(H_1, F_1) → s
25. Segment(H_1, G_1) → t
26. Segment(D_1, C_1) → f
27. Segment(D_1, F_1) → g
28. Segment(D_1, G_1) → h