四面体的反射对称性

GeoGebra 命令及参数

1. Point(yAxis) → A
2. Point(Circle[Midpoint[A, B], (Distance[A, B] * sqrt(3) / 2), Segment[A, B]]) → C
3. Tetrahedron(A, B, C) → a, V, edgeCD, edgeBD, faceABC, faceACD, faceABD, faceBCD, edgeAC, edgeAB, edgeBC, edgeAD
4. Midpoint(A, B) → M
5. Point(a) → D
6. Point(a) → E
7. Midpoint(B, C) → N
8. Midpoint(V, C) → O
9. Point(a) → F
10. IntersectPath(Plane[D, E, F], a) → poly1, G, H, I, J, b, c, d, e
11. Mirror(a, poly1) → a'
12. Midpoint(A, C) → P_1
13. Midpoint(V, A) → P_2
14. Midpoint(V, B) → P_3