Durchdringungsphänomene einer Pyramide mit einem Prisma

Kurzbeschreibung: The models show the intersection of a triangular pyramid and a triangular prism. In all three models the prism can be pulled out; the curve of intersection is clearly to be seen.
In the left model all three edges of the prism intersect the pyramid; one obtains two distinct polygons of intersection.
In the centre model one edge of the prism intersects one edge of the pyramid; the …