隧道水深计算

GeoGebra 命令及参数

1. Circle(A, a) → c
2. Line(B, C) → d
3. Intersect(c, d, 1) → D
4. Intersect(c, d, 2) → E
5. Point(c) → F
6. CircumcircleArc(D, F, E) → e
7. CircumcircleSector(D, F, E) → f
8. Polygon(D, E, A) → poly1, a_1, d_1, e_1
9. Polygon(D, A, E) → poly2, e_2, d_2, a_2
10. Point(c) → G
11. Circle(A, G) → g
12. Distance(D, E) → distanceDE
13. Midpoint(D, E) → H
14. Polygon(H, A, E) → poly3, e_3, h, a_3
15. Distance(A, E) → distanceAE
16. Angle(E, H, A) → α
17. Polygon(I, J, K, L) → poly4, i_1, j_1, k, l
18. Polygon(Q, R, S, T) → poly6, q, r, s, t
19. Polygon(U, V, W, Z) → poly7, u, v, w, z