Example image of eyePlorer eyePlorer map for 'Tetrahedron': Geometry Polyhedron Triangle Vertex (geometry) Platonic solid Pyramid (geometry) Convex polytope Circumscribed sphere Cartesian coordinate system Cube Stellated octahedron Apex (geometry) Median (geometry) Slope Centroid Determinant Graph theory Cross product Dot product Triple product Parallelepiped Heron's formula Niccolò Fontana Tartaglia Piero della Francesca Skew lines Spieker circle Nine-point circle Gaspard Monge Dual polyhedron Octahedron Polyhedral compound Rectification (geometry) Aristotle Honeycomb (geometry) Rhombohedron Uniform polyhedron Compound of five tetrahedra Origami Dodecahedron Left-handedness Mirror image Right-handedness Symmetric group Symmetry group Alternating group Conjugacy class Point groups in three dimensions Klein four-group Law of sines Degrees of freedom