noun
tridecagon
trahy-DEK-uh-gon
Tridecagon (noun) means a polygon with thirteen sides and thirteen angles. Example: “The tridecagon drawn on the board had thirteen straight sides.”
noun
1
technical A polygon with thirteen sides and thirteen angles.
"The tridecagon drawn on the board had thirteen straight sides."
"A regular tridecagon has thirteen equal angles."
"Few everyday objects are shaped like a tridecagon."
How to use tridecagon
Learner’s notesIn plain EnglishA shape with thirteen straight sides.
When to use it
This is a specialist geometry term rather than everyday vocabulary.
Easily confused with
Common pairings
regular tridecagon
draw a tridecagon
the sides of a tridecagon
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The _____ drawn on the board had thirteen straight sides.
Etymology
The name joins the prefix trideca-, meaning thirteen, with the suffix -gon, meaning angle. Both parts are drawn from Greek, following the usual pattern for naming many-sided shapes.
Synonyms
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13-gon
triskaidecagon
Rhymes for tridecagon
See all rhymes for tridecagon →Frequently asked questions
What is a tridecagon?
It is a polygon with thirteen straight sides and thirteen angles.
What is another name for a tridecagon?
It can also be called a 13-gon or a triskaidecagon.
How many sides does a tridecagon have?
Thirteen.
What is the meaning of tridecagon?
"tridecagon" (noun) means a polygon with thirteen sides and thirteen angles.
