A 38-sided polygon would be named a triacontaoctagon.
It contains 36 triangles
They add up to 6480 degrees
A five sided polygon is called a pentagon because pentagon means five sided polygon I think.
An 11 sided polygon is a hendecagon and a 12 sided polygon is a dodecagon
A 38-sided polygon would be named a triacontaoctagon.
Providing that it is a regular 38 sided polygon then each interior angle will measure: 170o31'34.74''
an irregular polygon
Sum of interior angles of a 38 sided polygon: (38-2)*180 = 6480 degrees
It contains 36 triangles
They add up to 6480 degrees
11
One billion-sided polygon = GIGAGON
A five sided polygon is called a pentagon because pentagon means five sided polygon I think.
An 11 sided polygon is a hendecagon and a 12 sided polygon is a dodecagon
icosihenagon= 21-sided polygon icosihenagon= 21-sided polygon
It's quite acceptable to call it a 38-agon but what's more important is knowing how to work out its properties.