What is an octagon? Definition and examples

An octagon is a polygon with 8 sides and 8 angles. The name came from the Greek prefix octa meaning 8 and the Greek suffix gon meaning sides or angles.

Types of octagons

The two types of octagons are regular octagon and irregular octagon. 

Regular octagon

In a regular octagon, all sides are equal and all angles have equal measures.  

irregular polygons

In an irregular octagon, at least one side has a different length or at least one angle has a different measure.

Real-life examples of octagons

  • A stop sign is commonly used as a traffic sign and it is an octagon
  • A clock could be shaped like an octagon
  • A trampoline could be shaped like an octagon
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