三维空间中的距离构造：快速形成性评估

GeoGebra 命令及参数

1. Segment(A, B) → f
2. Segment(A, C) → g
3. Segment(C, D) → h
4. Segment(D, B) → i
5. Segment(D, A) → j
6. Angle(D, C, A) → α
7. Angle(B, D, A) → β
8. Polygon(A, C, D, E) → q1, a, c, d, e
9. Prism(D, C, A, E, B) → b, F, edgeCD, edgeAC, edgeAE, edgeDE, edgeBD, edgeCF, edgeAG, edgeEH, edgeBF, edgeFG, G, edgeGH, edgeBH, H, faceACDE, faceBDCF, faceACFG, faceAEHG, faceBDEH, faceBFGH
10. Polygon(D, C, A) → t1, a_1, d_1, c_1
11. Polygon(D, B, A) → t2, l, m, n
12. Length(l1) → o
13. Mode(l1) → l2
14. RandomElement(l1) → p
15. CountIf(x ≟ p, l1) → q
16. If(q ≟ 1, "1 unique", q ≟ 2, "2 unique", q ≟ 3, "3 unique") → text3
17. If(q ≟ 1, "possibility exists.", "possibilities exist.") → text4