- In geometry, an
octagon (from
Ancient Gr**** ὀκτάγωνον (oktágōnon) 'eight angles') is an eight-sided
polygon or 8-gon. A
regular octagon has Schläfli symbol...
-
paper is
opened out, the
creases coincide with
diagonal sections of a
regular octagon. The
first two
creases divide the
square into a
silver gnomon with...
-
octagon is
tangent to two
sides of a
regular octagon, and
asymptotic to the two
adjacent to these. The
following details apply to a
regular octagon of...
-
polygon with
eight sides is an
octagon. A
regular octagon can fill a plane-vertex with a
regular triangle and a
regular icositetragon, as well as tessellate...
-
octagon, t{8}, and a twice-truncated
square tt{4}. A
truncated hexadecagon, t{16}, is a triacontadigon, {32}. As 16 = 24 (a
power of two), a
regular hexadecagon...
- In geometry, the
octagonal prism is a
prism comprising eight rectangular sides joining two
regular octagon caps. The
octagonal prism can also be seen...
- In geometry, a star
polygon is a type of non-convex polygon.
Regular star
polygons have been
studied in depth;
while star
polygons in
general appear not...
- "line". In general, an
octagram is any self-intersecting
octagon (8-sided polygon). The
regular octagram is
labeled by the Schläfli
symbol {8/3}, which...
- the
rhombicuboctahedron is by
attaching two
regular square cupolas into the
bases of a
regular octagonal prism. A
rhombicuboctahedron may also be known...
-
unlike Leonardo's drawing. He
suggests instead constructions based on a
regular octagon or on the
vesica piscis. Leonardo's
drawing is
almost always dated...
