A hexadecagon is a 16-sided polygon with 16 angles.
Petrie polygons[]
The regular hexadecagon is the Petrie polygon for many higher-dimensional polytopes, shown in these skew orthogonal projections, including:
| A15 | File:15-simplex t0.svg 15-simplex | |||||||
|---|---|---|---|---|---|---|---|---|
| B8 | File:8-cube t7.svg 8-orthoplex |
File:8-cube t6.svg Rectified 8-orthoplex |
File:8-cube t5.svg Birectified 8-orthoplex |
File:8-cube t4.svg Trirectified 8-orthoplex |
File:8-cube t3.svg Trirectified 8-cube |
 Birectified 8-cube |
 Rectified 8-cube |
File:8-cube t0.svg 8-cube |
| D9 | File:9-cube t8 B8.svg t7(161) |
Error creating thumbnail: t6(161) |
Error creating thumbnail: t5(161) |
File:9-cube t5 B8.svg t4(161) |
 t3(161) |
Error creating thumbnail: t2(161) |
File:9-cube t2 B8.svg t1(161) |
Error creating thumbnail: 9-demicube (161) |
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