长方体表面积与体积计算

GeoGebra 命令及参数

1. Vector(A, B) → u
2. Vector(A, C) → v
3. Vector(A, D) → w
4. Translate(E, Vector[(height * u)]) → E'
5. Vector(E, E') → z
6. Translate(E, Vector[(width * w)]) → E'_1
7. Translate(E, Vector[(length * v)]) → E'_2
8. Translate(E'_2, Vector[(height * u)]) → F
9. Translate(E'_1, Vector[(height * u)]) → G
10. Polygon(F, E'_2, E, E') → poly1, f, e'_2, e, e'
11. Polygon(E, E'_1, G, E') → poly2, e_1, e'_1, g, e'_3
12. Line(F, g) → d
13. Line(G, e') → h
14. Intersect(d, h) → H
15. Polygon(F, E', G, H) → poly3, f_1, e'_4, g_1, h_1
16. Polygon(J, I, K, L) → poly4, j, i, k, l
17. Polygon(N, J, I, M) → poly5, n, j_1, i_1, m
18. Polygon(N, P, O, M) → poly6, n_1, p, o, m_1
19. Polygon(Q, R, N, J) → poly7, q, r, n_2, j_2
20. Polygon(T, S, I, M) → poly8, t, s, i_2, m_2
21. Polygon(V, U, O, P) → poly9, v_1, u_1, o_1, p_1
22. Midpoint(e'_2) → W
23. Midpoint(e_1) → Z
24. Midpoint(e'_1) → A_1
25. Midpoint(v_1) → B_1
26. Midpoint(u_1) → C_1
27. Midpoint(o) → D_1
28. Midpoint(m_2) → E_1
29. Midpoint(t) → F_1