周长与概率的三角形演示

GeoGebra 命令及参数

1. Point(Circle[C, b]) → D
2. Segment(C, D) → g
3. Point(Circle[E, a]) → F
4. Segment(E, F) → h
5. Point(Circle[K, c]) → L
6. Segment(K, L) → k
7. Point(Circle[O, d]) → P
8. Segment(O, P) → m
9. Vector(A, B) → u
10. Point(Circle[G, 2]) → H
11. Segment(G, H) → f
12. Point(Circle[I, 2]) → J
13. Segment(I, J) → i
14. Polygon(Q, R, S, T) → poly1, q, r, s, t
15. Textfield() → InputBox1