A polygon is regular when all angles are equal and all sides are equal (otherwise it is "irregular").
This is a regular pentagon (a 5-sided polygon).
Play with polygons below:
../geometry/images/area-coords.js?mode=any
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A polygon is regular when all angles are equal and all sides are equal (otherwise it is "irregular").
This is a regular pentagon (a 5-sided polygon).
Play with polygons below: