It's quite acceptable to call it a 51-agon but what's more important is knowing how to work out its properties.
A 51-sided polygon is called a pentacontahenagon.
it is called a seven sided shape in Canada
The name of a 51 sided polygon is Pentaconhenagon. The name of a 52 sided polygon is Pentacondigon. The name of a 53 sided polygon is Pentacontrigon. The name of a 54 sided polygon is Pentacontetragon. The name of a 55 sided polygon is Pentaconpentagon. The name of a 56 sided polygon is Pentaconheptagon. The name of a 57 sided polygon is Pentaconhexagon. The name of a 58 sided polygon is Pentaconoctagon. The name of a 59 sided polygon is Pentaconenneagon.
An five sided shape is called a Pentagon
A 128-sided shape is called a hecatoicosioctagon.
pentacontakaihenagon"
hembleactal
A 51-sided polygon is called a pentacontahenagon.
it is called a seven sided shape in Canada
a one sided shape is called a henagon and a 2 sided shape is called a digon
The name of a 51 sided polygon is Pentaconhenagon. The name of a 52 sided polygon is Pentacondigon. The name of a 53 sided polygon is Pentacontrigon. The name of a 54 sided polygon is Pentacontetragon. The name of a 55 sided polygon is Pentaconpentagon. The name of a 56 sided polygon is Pentaconheptagon. The name of a 57 sided polygon is Pentaconhexagon. The name of a 58 sided polygon is Pentaconoctagon. The name of a 59 sided polygon is Pentaconenneagon.
A 10-sided shape is called a decagon.
An five sided shape is called a Pentagon
A 150 sided shape is called heptaconta.
Hommasquabblelagagon
The 22 sided shape is called a: ICOSIKAIDIGON
A five-sided shape is called a pentagon.