多边形面积测量

GeoGebra 命令及参数

1. Segment(X0, X0 + (0, 0.25)) → g
2. Segment(X0, X0 + (0, mark)) → h
3. Segment(X0 + (1, 0), X0 + (1, mark)) → i
4. Vector(X0 + (0, mark / 2), X0 + (1, mark / 2)) → u
5. Vector(X0 + (1, mark / 2), X0 + (0, mark / 2)) → v
6. Segment(Y0 - (mark, 0), Y0) → j
7. Segment(Y0 - (mark, 1), Y0 - (0, 1)) → k
8. Vector(Y0 - (mark / 2, 1), Y0 - (mark / 2, 0)) → w
9. Vector(Y0 - (mark / 2, 0), Y0 - (mark / 2, 1)) → z
10. Point(yAxis) → A
11. Point(xAxis) → D
12. Translate(A, Vector[(t1 * Vector[A, D])]) → A'
13. Translate(F, Vector[(t1 * Vector[A, D])]) → F'
14. Translate(B, Vector[(t1 * Vector[A, D])]) → B'
15. Polygon(A', F', B') → poly1, b', a', f'
16. Translate(C, Vector[(t2 * Vector[D, A])]) → C'
17. Translate(D, Vector[(t2 * Vector[D, A])]) → D'
18. Translate(H, Vector[(t2 * Vector[D, A])]) → H'
19. Translate(E, Vector[(t2 * Vector[D, A])]) → E'
20. Polygon(C', D', H') → poly2, a, b, c
21. Translate(B, Vector[(t3 * Vector[B, A])]) → B'_1
22. Translate(C, Vector[(t3 * Vector[B, A])]) → C'_1
23. Translate(E, Vector[(t3 * Vector[B, A])]) → E'_1
24. Polygon(B'_1, C'_1, E'_1) → poly3, e'_1, b'_1, c'_1
25. Translate(A, Vector[(t4 * Vector[A, B])]) → A'_1
26. Translate(G, Vector[(t4 * Vector[A, B])]) → G'
27. Translate(D, Vector[(t4 * Vector[A, B])]) → D'_1
28. Polygon(A'_1, G', D'_1) → poly4, d'_1, a'_1, g'
29. Polygon(E, F, G, H) → poly5, e, f, g_1, h_1
30. Polygon(A', F', B') → poly1', b'_2, a'_2, f'_1
31. Polygon(C', D', H') → poly2', d, l, m
32. Polygon(B'_1, C'_1, E'_1) → poly3', e'_2, b'_3, c'_2
33. Polygon(A'_1, G', D'_1) → poly4', d'_2, a'_3, g'_1
34. Polygon(A, B, C, D) → poly6, a_1, b_1, c_1, d_1
35. Polygon(A, B, F) → poly7, f_1, a_2, b_2
36. Polygon(B, C, E) → poly8, e_1, b_3, c_2
37. Polygon(C, D, H) → poly9, h_2, c_3, d_2
38. Polygon(A, G, D) → poly10, d_3, a_3, g_2