Search
Subject Categories:
 Art (433)
 Asperger's (32)
 Blogging (9)
 China and the Han (9)
 eBay (3)
 Education (91)
 Fiction (28)
 Geography (27)
 History (37)
 Humor (45)
 Life (354)
 Mandalas (121)
 Mathematics (1,195)
 Mental Health (72)
 Music (43)
 Mysteries (16)
 Politics (116)
 Quotations (64)
 Religion (58)
 Satire (9)
 Science and Scientists (119)
 Follow RobertLovesPi's Blog on WordPress.com
MostViewed Posts, Recently:

Recent Posts
 Throwing Star Tessellation
 Tessellation of Triangles and Pentagons
 The C320 Fullerene Polyhedron
 The Construction of a Zome Model of a 240Atom Fullerene Molecule, In Seven Pictures
 A Faceting of the Rhombcuboctahedron
 The Truncated Stella Octangula
 Tiles
 Black, White, and Red
 You Don’t Even Have to Use the Idiot’s Name
 A Pinwheel of Rhombi #2
Explore RobertLovesPi By Topic
Arkansas Art Asperger's Aspie astronomy atheism atheist chemistry chiral circle cluster compound cube cuboctahedron dodecahedron dual Education enneagon faceted faceting geometric geometrical geometrical art geometry Golden Ratio hexagon Humor humour icosahedron icosidodecahedral icosidodecahedron kite language life mandala mandalas math mathematical mathematical art Mathematics music nearmiss nonagon octagon octahedron op art pentagon physics politics polygon polyhedra polyhedral polyhedron quotation quote religion rhombic dodecahedron rhombicosidodecahedron rhombic triacontahedron rhombus school science snub dodecahedron star stellated stellation symmetry tessellation tetrahedron tiling triangle truncated icosahedron USA words zonohedronHit Counter
 255,259 hits
Tag Archives: pentagon
Tessellation of Triangles and Pentagons
Alternately, this can be seen as a tessellation of hexagons and enneagons. Which do you see?
Posted in Mathematics
Tagged enneagon, geometry, hexagon, Mathematics, nonagon, pentagon, tessellation, triangle
2 Comments
A Polyhedron Made of Enneagons and Pentagons
This polyhedron has 20 enneagons and 12+60=72 pentagons (of two types) as faces. I made it using Stella 4d, which is available at http://www.software3d.com/Stella.php.
Posted in Mathematics
Tagged enneagon, geometry, Mathematics, nonagon, pentagon, polyhedra, polyhedron
Leave a comment
Triacontahedron with Two Dozen Pentagonal Faces
Of the thirty faces of this polyhedron, only the yellow parallelograms are not pentagons. I used Stella 4d to make this; you may try it for free at http://www.software3d.com/Stella.php.
Three Polyhedra with Only Pentagonal Faces
The polyhedron above has 72 pentagonal faces of two types. The next one below has three different types of pentagon for its 132 faces. After that is a polyhedron with sixty faces, all of which are nonconvex pentagons. All three … Continue reading