A 5 sided shape is called a pentagon because Geometry was studied (and practically invented) by the Greeks. The word pentagon is made up of two Greek words: πέντε γωνία which are:
πέντε (or pente) the Greek for 5
γωνία (or gonia) the Greek for Corner or Angle.
Thus the word "Pentagon" literally means "five angles", so a pentagon is a shape with five angles. Having five angles it also has five sides.
All two dimensional shapes are called polygons; this too comes from two Greek words:
πολλοί (polloi) meaning Many (transliterated into English as "poly")
γωνία (gonia) meaning Angle (as before).
Thus a "Polygon" is literally a "many angled" shape.
pentagon
A 5 sided shape is called a pentagon.
A 5 sided shape is called a pentagon.
A five-sided 2-dimensional shape is a pentagon.
No, it's called a pentagon
Five sided shapes are called Pentagons
An five sided shape is called a Pentagon
A five sided shape is called a pentagon.
pentagon
A 5 sided shape is called a pentagon.
A 5 sided shape is called a pentagon.
a five sided shape in geometry is called a pentagon
It is a Pentagon.
A regular 5-sided shape is called a pentagon.
A five-sided 2-dimensional shape is a pentagon.
A five sided geometric shape is called a pentagon.
No, it's called a pentagon