四边形与多边形综合构造与面积探究

GeoGebra 命令及参数

1. Circle(H_1, lado_1) → f
2. Polygon(A_1, B_1, C, D) → pol1, a, b, c, d
3. Point(f) → K_1
4. Point(f) → I
5. Midpoint(c) → L_1
6. Midpoint(b) → M_1
7. Join(Sequence[Sequence[(i, j), i, 0, B - 1], j, 0, H - 1]) → L1
8. Segment(K_1, H_1) → g
9. Polygon(H_1, K_1, 4) → pol2, i, j, k, l, E, G
10. Circle(J, lado_2) → h
11. Point(h) → N_1
12. Polygon(J, N_1, 4) → pol3, m, p, q, r, O, P
13. Join(Sequence[Sequence[((r * 0.5), (m * 0.5)), r, 0, (2 * B) - 1], m, 0, (2 * H)]) → M
14. Sequence(Polygon[Element[L1, i], (x(Element[L1, i] + 1), y(Element[L1, i])), 4], i, 1, n) → K
15. Sequence(Polygon[Element[M, m], (x(Element[M, m] + 0.5), y(Element[M, m])), 4], m, 1, (4 * e)) → N
16. Polygon(A, B_1, C, D) → q1, a_1, b_1, c_1, d_1