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by 4 triangles), which can be visualized by constructing the projective plane as a hemisphere where opposite points along the boundary are connected and dividing the hemisphere into four equal parts. It can be seen as a
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It has an unexpected property that there are two distinct edges between every pair of vertices – any two vertices define a
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It can be represented symmetrically as a hexagonal or square
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It has 4 triangular faces, 6 edges, and 3 vertices. Its
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Abstract regular polyhedron with 4 triangular faces
46:but its sources remain unclear because it lacks
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77:Learn how and when to remove this message
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253:, containing half the faces of a
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251:abstract regular polyhedron
110:abstract regular polyhedron
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348:Abstract Regular Polytopes
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271:It can be realized as a
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281:real projective plane
273:projective polyhedron
115:projective polyhedron
390:Projective polyhedra
170:Vertex configuration
331:Hemicube (geometry)
375:The hemioctahedron
288:without its base.
255:regular octahedron
34:list of references
321:Hemi-dodecahedron
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67:November 2014
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53:Please help
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155:Euler char.
59:introducing
337:References
230:Properties
213:, order 24
128:triangles
113:globally
384:Category
315:See also
266:hemicube
243:geometry
224:hemicube
145:Vertices
352:162–165
279:of the
264:is the
187:{3,4}/2
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249:is an
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191:{3,4}
135:Edges
122:Faces
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