平行四边形棱锥

GeoGebra 命令及参数

1. Polygon(A, B, C, D) → q1, a, b, c, d
2. Pyramid(q1, f) → g, F, faceABF, faceBCF, faceCDF, faceADF, edgeAF, edgeBF, edgeCF, edgeDF
3. Net(g, OpenClose) → h, E, faceEGJ, faceGHK, faceHIL, faceEIM, edgeEG, edgeGH, edgeHI, edgeEI, edgeEJ, edgeGJ, G, edgeGK, edgeHK, edgeHL, edgeIL, edgeIM, edgeEM, H, I, J, K, L, M, faceEGHI
4. OrthogonalLine(B, edgeEI, space) → i
5. Intersect(i, edgeEI) → N
6. Angle(B, N, A) → α
7. PointIn(faceEGHI) → PointfaceEGHI
8. OrthogonalLine(K, edgeGH, space) → k
9. Intersect(k, edgeGH) → O
10. OrthogonalLine(M, edgeEI, space) → m
11. Intersect(m, edgeEI) → P
12. Angle(M, P, D) → γ
13. OrthogonalLine(J, edgeEG, space) → p
14. OrthogonalLine(L, edgeHI, space) → q
15. Intersect(edgeHI, q) → Q
16. Intersect(edgeEG, p) → S
17. Angle(J, S, A) → ζ
18. Segment(S, J) → f_1
19. Segment(P, M) → g_1
20. Segment(N, B) → i_1
21. Segment(D, C) → m_1
22. Segment(C, B) → n_1
23. Intersect(edgeEJ, edgeGJ) → R
24. Intersect(edgeEM, edgeIM) → T
25. Segment(G, E) → j
26. Segment(E, I) → l
27. Length(d) → e
28. Length(i_1) → n
29. Length(g_1) → o
30. Length(a) → r
31. Length(f_1) → s