- In geometry, a
pentadecagon or
pentakaidecagon or 15-gon is a fifteen-sided polygon. A
regular pentadecagon is
represented by Schläfli
symbol {15}. A regular...
- polygon, by an edge-bisection of a
regular pentadecagon, and can also be
constructed as a
truncated pentadecagon, t{15}. A
truncated triacontagon, t{30}...
-
sides Dodecagon – 12
sides Tridecagon – 13
sides Tetradecagon – 14
sides Pentadecagon – 15
sides Hexadecagon – 16
sides Heptadecagon – 17
sides Octadecagon...
- is the
product of
distinct Fermat primes, 3 and 5; hence, a
regular pentadecagon is
constructible with a comp**** and
unmarked straightedge, and cos ...
- plane-vertex
alongside two
regular pentagons, and
alongside a fifteen-sided
pentadecagon and triangle. The
decagon is the hemi-face of the icosidodecahedron,...
-
tridecagon (or triskaidecagon) 13
tetradecagon (or tetrakaidecagon) 14
pentadecagon (or pentakaidecagon) 15
hexadecagon (or hexakaidecagon) 16 heptadecagon...
-
Octagon Enneagon Decagon Hendecagon Dodecagon Tridecagon Tetradecagon Pentadecagon Hexadecagon Heptadecagon Octadecagon Enneadecagon Icosagon Hectogon Chiliagon...
-
illustrating mathematical articles for publication. If a
figure (such as the
pentadecagon) can be
constructed with the comp**** and
straightedge method, it can...
-
dodecagon 13
tridecagon triskaidecagon 14
tetradecagon tetrakaidecagon 15
pentadecagon pentakaidecagon 16
hexadecagon hexakaidecagon 17
heptadecagon heptakaidecagon...
- Isogonal, p14 Isogonal, p14 Isogonal, p14 Irregular, d2
Direct equiangular pentadecagons, <15>, <15/2>, <15/3>, <15/4>, <15/5>, <15/6>, and <15/7>, have 156°...
