棱锥与棱柱

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → Z
2. Point(Circle[Z, a]) → Y
3. Segment(Z, Y) → b
4. Mirror(Y, Z) → B'
5. OrthogonalLine(B', b) → c
6. OrthogonalLine(Y, b) → d
7. Rotate(Y, 90*°, Z) → B'_1
8. Mirror(B'_1, Z) → X
9. Line(B'_1, b) → e
10. Line(X, b) → f
11. Intersect(c, e) → D
12. Intersect(d, e) → A
13. Intersect(d, f) → B
14. Intersect(c, f) → C
15. Polygon(D, A, B, C) → poly1, d_1, e_1, f_1, g
16. Prism(A, B, C, D, F) → j, G, edgeAB_1, edgeBC, edgeCD, edgeAD_1, edgeAF, edgeBG, edgeCH, edgeDI, edgeFG, edgeGH, H, edgeHI, edgeFI, I, faceABCD, faceABGF, faceBCHG, faceCDIH, faceADIF, faceFGHI
17. Point(g) → J
18. PointIn(faceFGHI) → E
19. Pyramid(A, B, J, D, E) → i, faceABJD, edgeAE, edgeBE, edgeEJ, edgeDE, faceABE, faceBEJ, faceDEJ, faceADE, edgeAB, edgeBJ, edgeDJ, edgeAD