Decagon
noun
A shape with ten sides and ten angles.
In her geometry class, she was asked to draw a decagon.
Often appears as...
- regular decagon
- irregular decagon
Usage tips
Academic
noun
A shape with ten sides and ten angles.
In her geometry class, she was asked to draw a decagon.
Often appears as...
- regular decagon
- irregular decagon
Usage tips
Academic
Definition 1 of 1
Pro Tip 1/3Geometry Term
Commonly used in mathematics to describe a ten-sided polygon, especially in geometry lessons.
For her homework, she had to calculate the interior angles of a decagon.
Pro Tip 2/3Regular vs. Irregular
A 'regular decagon' has all sides and angles equal, while an 'irregular decagon' does not.
A stop sign is an example of an irregular octagon, not a decagon.
Pro Tip 3/3Convex Shape
A convex decagon means all points on the interior angles point outward, with no indentations.
Convex decagons are often used in tiling patterns.
Pro Tip 1/3Geometry Term
Commonly used in mathematics to describe a ten-sided polygon, especially in geometry lessons.
For her homework, she had to calculate the interior angles of a decagon.
Pro Tip 2/3Regular vs. Irregular
A 'regular decagon' has all sides and angles equal, while an 'irregular decagon' does not.
A stop sign is an example of an irregular octagon, not a decagon.
Pro Tip 3/3Convex Shape
A convex decagon means all points on the interior angles point outward, with no indentations.
Convex decagons are often used in tiling patterns.
Pro Tip 1/3Geometry Term
Commonly used in mathematics to describe a ten-sided polygon, especially in geometry lessons.
For her homework, she had to calculate the interior angles of a decagon.
Pro Tip 2/3Regular vs. Irregular
A 'regular decagon' has all sides and angles equal, while an 'irregular decagon' does not.
A stop sign is an example of an irregular octagon, not a decagon.
Pro Tip 3/3Convex Shape
A convex decagon means all points on the interior angles point outward, with no indentations.
Convex decagons are often used in tiling patterns.
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