Template:Regular convex 4-polytopes Facts for Kids

Regular convex 4-polytopes
Symmetry group	A₄	B₄		F₄	H₄
Name	5-cell Hyper-tetrahedron 5-point	16-cell Hyper-octahedron 8-point	8-cell Hyper-cube 16-point	24-cell 24-point	600-cell Hyper-icosahedron 120-point	120-cell Hyper-dodecahedron 600-point
Schläfli symbol	{3, 3, 3}	{3, 3, 4}	{4, 3, 3}	{3, 4, 3}	{3, 3, 5}	{5, 3, 3}
Coxeter mirrors
Mirror dihedrals	𝝅/3 𝝅/3 𝝅/3 𝝅/2 𝝅/2 𝝅/2	𝝅/3 𝝅/3 𝝅/4 𝝅/2 𝝅/2 𝝅/2	𝝅/4 𝝅/3 𝝅/3 𝝅/2 𝝅/2 𝝅/2	𝝅/3 𝝅/4 𝝅/3 𝝅/2 𝝅/2 𝝅/2	𝝅/3 𝝅/3 𝝅/5 𝝅/2 𝝅/2 𝝅/2	𝝅/5 𝝅/3 𝝅/3 𝝅/2 𝝅/2 𝝅/2
Graph
Vertices	5 tetrahedral	8 octahedral	16 tetrahedral	24 cubical	120 icosahedral	600 tetrahedral
Edges	10 triangular	24 square	32 triangular	96 triangular	720 pentagonal	1200 triangular
Faces	10 triangles	32 triangles	24 squares	96 triangles	1200 triangles	720 pentagons
Cells	5 tetrahedra	16 tetrahedra	8 cubes	24 octahedra	600 tetrahedra	120 dodecahedra
Tori	1 5-tetrahedron	2 8-tetrahedron	2 4-cube	4 6-octahedron	20 30-tetrahedron	12 10-dodecahedron
Inscribed	120 in 120-cell	675 in 120-cell	2 16-cells	3 8-cells	25 24-cells	10 600-cells
Great polygons		2 squares x 3	4 rectangles x 4	4 hexagons x 4	12 decagons x 6	100 irregular hexagons x 4
Petrie polygons	1 pentagon	1 octagon	2 octagons	2 dodecagons	4 30-gons	20 30-gons
Long radius	$1$	$1$	$1$	$1$	$1$	$1$
Edge length	$\sqrt{\tfrac{5}{2}} \approx 1.581$	$\sqrt{2} \approx 1.414$	$1$	$1$	$\tfrac{1}{\phi} \approx 0.618$	$\tfrac{1}{\phi^2\sqrt{2}} \approx 0.270$
Short radius	$\tfrac{1}{4}$	$\tfrac{1}{2}$	$\tfrac{1}{2}$	$\sqrt{\tfrac{1}{2}} \approx 0.707$	$\sqrt{\tfrac{\phi^4}{8}} \approx 0.926$	$\sqrt{\tfrac{\phi^4}{8}} \approx 0.926$
Area	$10\left(\tfrac{5\sqrt{3}}{8}\right) \approx 10.825$	$32\left(\sqrt{\tfrac{3}{4}}\right) \approx 27.713$	$24$	$96\left(\sqrt{\tfrac{3}{16}}\right) \approx 41.569$	$1200\left(\tfrac{\sqrt{3}}{4\phi^2}\right) \approx 198.48$	$720\left(\tfrac{\sqrt{25+10\sqrt{5}}}{8\phi^4}\right) \approx 90.366$
Volume	$5\left(\tfrac{5\sqrt{5}}{24}\right) \approx 2.329$	$16\left(\tfrac{1}{3}\right) \approx 5.333$	$8$	$24\left(\tfrac{\sqrt{2}}{3}\right) \approx 11.314$	$600\left(\tfrac{\sqrt{2}}{12\phi^3}\right) \approx 16.693$	$120\left(\tfrac{15 + 7\sqrt{5}}{4\phi^6\sqrt{8}}\right) \approx 18.118$
4-Content	$\tfrac{\sqrt{5}}{24}\left(\tfrac{\sqrt{5}}{2}\right)^4 \approx 0.146$	$\tfrac{2}{3} \approx 0.667$	$1$	$2$	$\tfrac{\text{Short}\times\text{Vol}}{4} \approx 3.863$	$\tfrac{\text{Short}\times\text{Vol}}{4} \approx 4.193$

Template:Regular convex 4-polytopes facts for kids