立方体下方的金字塔体积计算方法

GeoGebra 命令及参数

1. Cube(A, B, C) → cube, D, faceCDHG_1, faceEFGH_1, edgeAD_1, edgeAB_1, edgeBC_1, edgeCD_1, edgeAE_1, edgeDH_1, edgeEH_1, edgeEF_1, E, edgeBF_1, edgeFG_1, edgeCG_1, edgeGH_1, F, G, H, faceABCD_1, faceADHE_1, faceABFE_1, faceBCGF_1
2. Line(A, B) → ax1
3. Rotate(E, fold_unfold, ax1) → E'
4. Line(E, F) → ax5
5. Segment(G, A) → f
6. Midpoint(f) → O
7. Pyramid(E, F, G, H, O) → Pyr5, faceEFGH, edgecenterE_2, edgecenterF_2, edgecenterG_1, edgecenterH_1, facecenterEF, facecenterFG_1, facecenterGH_1, facecenterEH_1, edgeEF, edgeFG_2, edgeGH_2, edgeEH_2
8. Pyramid(A, E, F, B, O) → Pyr1, faceABFE, edgeAcenter_1, edgecenterE_1, edgecenterF_1, edgeBcenter_1, faceAcenterE_1, facecenterEF_1, faceBcenterF_1, faceABcenter_1, edgeAE_2, edgeEF_2, edgeBF_2, edgeAB_2
9. Rotate(Pyr1, fold_unfold, ax1) → Rot1
10. Vector(E, E') → u
11. Translate(Rotate[Pyr5, (2 * fold_unfold), ax5], u) → Rot5
12. Pyramid(B, C, G, F, O) → Pyr2, faceBCGF, edgeBcenter_2, edgeCcenter_1, edgecenterG_2, edgecenterF, faceBCcenter_1, faceCcenterG_1, facecenterFG, faceBcenterF, edgeBC_2, edgeCG_2, edgeFG, edgeBF
13. Line(B, C) → ax2
14. Rotate(Pyr2, fold_unfold, ax2) → Rot2
15. Pyramid(C, D, H, G, O) → Pyr3, faceCDHG, edgeCcenter_2, edgecenterD_1, edgecenterH_2, edgecenterG, faceCcenterD_1, facecenterDH_1, facecenterGH, faceCcenterG, edgeCD_2, edgeDH_2, edgeGH, edgeCG
16. Line(C, D) → ax3
17. Rotate(Pyr3, fold_unfold, ax3) → Rot3
18. Pyramid(D, A, E, H, O) → Pyr4, faceADHE, edgecenterD_2, edgeAcenter_2, edgecenterE, edgecenterH, faceAcenterD_1, faceAcenterE, facecenterEH, facecenterDH, edgeAD_2, edgeAE, edgeEH, edgeDH
19. Line(D, A) → ax4
20. Rotate(Pyr4, fold_unfold, ax4) → Rot4
21. Pyramid(A, B, C, D, O) → Pyr6, faceABCD, edgeAcenter, edgeBcenter, edgeCcenter, edgecenterD, faceABcenter, faceBCcenter, faceCcenterD, faceAcenterD, edgeAB, edgeBC, edgeCD, edgeAD