面积与尺寸的关系：动态几何探究

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Angle(Line[B, C], Line[A, B]) → α
3. Polygon(A, B, C) → t1, c, a, b
4. Sequence(B - ((i * c), 0), i, 0, N) → l2
5. Sequence(B + ((i * a); α), i, 0, N) → l1
6. Polygon(P, Q, B) → t2, f, g, h
7. Sequence(B + ((Q - B) / N * i), i, 1, N) → l10
8. Angle(P, Q, B) → β
9. Sequence(Q + ((b * i); β), i, 0, N) → l3
10. Sequence(Segment[l1(i), l2(i)], i, 1, N) → l5
11. Sequence(Segment[l1(i), l3(i)], i, 1, N) → l4
12. Sequence(Segment[l2(N - i + 1), l3(i + 1)], i, 1, N) → l6
13. Polygon(E, F, 4) → poly1, i, j, k, l, G, H
14. Sequence(F + (0, (i * j)), j, 0, N) → l7
15. Sequence(F + (((-i) * j), 0), j, 0, N) → l8
16. Sequence(I + (0, (i * j)), j, 0, N) → l9
17. Sequence(J + (((-i) * j), 0), j, 0, N) → l11
18. Polygon(F, J, K, I) → q1, f_1, j_1, k_1, i_1
19. Sequence(Segment[l11(i), l8(i)], i, 1, N + 1) → l12
20. Sequence(Segment[l9(i), l7(i)], i, 1, N + 1) → l13