Decagon

usgb/ˈdekəɡɑːn/
noun

A shape with ten sides and ten angles.

In her geometry class, she was asked to draw a decagon.
Visual representation of "decagon" - A shape with ten sides and ten angles.

Often appears as...

  • regular decagon
  • irregular decagon

Usage tips

Academic

Definition 1 of 1
Visual representation of "decagon"
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Geometry Term

Commonly used in mathematics to describe a ten-sided polygon, especially in geometry lessons.

Illustration for Geometry Term
For her homework, she had to calculate the interior angles of a decagon.
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Regular vs. Irregular

A 'regular decagon' has all sides and angles equal, while an 'irregular decagon' does not.

Illustration for Regular vs. Irregular
A stop sign is an example of an irregular octagon, not a decagon.
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Convex Shape

A convex decagon means all points on the interior angles point outward, with no indentations.

Illustration for Convex Shape
Convex decagons are often used in tiling patterns.
Visual representation of the word "Decagon"

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