query: Interesting Property of Tri-Rectangular Tetrahedron
positive_passages.docid: 21218
positive_passages.text: The foot of the height in an orthocentric tetrahedron is the orthocenter of a face.
negative_passages.docid: 65372
negative_passages.text: Triangles defined on an infinite Go board by same-colored stones
negative_passages.docid: 81975
negative_passages.text: Sequence of triangles with exponentiated sides
negative_passages.docid: 19497
negative_passages.text: Analogue of spherical coordinates in $n$-dimensions
negative_passages.docid: 83449
negative_passages.text: Proof with 3D vectors
negative_passages.docid: 106618
negative_passages.text: A Regular Tetrahedron is a cool Polyhedron.
negative_passages.docid: 94838
negative_passages.text: Show that a self-complementary graph contains an odd number of vertices with degree $(n-1)/2$
negative_passages.docid: 24477
negative_passages.text: Monochromatic squares in a colored plane
negative_passages.docid: 22540
negative_passages.text: Bisecting line segments in a tetrahedron.
negative_passages.docid: 129002
negative_passages.text: Number of triangles formed by $m$ lines
negative_passages.docid: 72767
negative_passages.text: Center of the dihedral group with odd and even number of vertices
negative_passages.docid: 101642
negative_passages.text: Counting in a rectangular grid with obstacles
negative_passages.docid: 153054
negative_passages.text: Euler characteristic for non-convex polyhedra.
negative_passages.docid: 151240
negative_passages.text: Short way for upper triangularization
negative_passages.docid: 95876
negative_passages.text: Number of vertices in the Klein bottle triangulation given in "Topology and geometry for physicists" by Nash and Sen
negative_passages.docid: 142861
negative_passages.text: Multipartite graphs which are not planar
negative_passages.docid: 79777
negative_passages.text: An olympiad Geometry problem involving triangles