直线方程演示

GeoGebra 命令及参数

1. Intersect(g, h) → A
2. Intersect(f, h) → B
3. Polygon(A, B, 4) → Square, n, p, q, r, C, D
4. Intersect(j, l) → E
5. Intersect(k, l) → F
6. Intersect(k, m) → G
7. Intersect(j, m) → H
8. Polygon(E, F, G, H) → Rhombus, e, f_1, g_1, h_1
9. Point(Circle[I, 4.47213595499958]) → J
10. Polygon(I, J, K) → Triangle, k_1, i_1, j_1