棱锥的截面

GeoGebra 命令及参数

1. Intersect(xAxis, zAxis) → F
2. Intersect(xAxis, zAxis) → A
3. Point(zAxis) → B
4. Ray(G, C) → f
5. OrthogonalPlane(G, f) → p
6. Point(Circle[M, Distance[L, M], Segment[L, M]]) → N
7. Pyramid((-2, -2), (-2, 2), (2, 2), (2, -2), (0, 0, 4)) → a, face1, edge5, edge6, edge7, edge8, face2, face3, face4, face5, edge1, edge2, edge3, edge4
8. IntersectPath(p, a) → poly1, H, k, I, J, K, O, g, h, i, j