How do I classify polygons using their attributes?

Answer 1

The answer depends on what attributes you want to use for classification. These could be:

• number of sides (vertices),
• whether or not all sides are equal,
• whether or not all angles are equal,
• whether or not all sides and angles are equal (regular),
• number of parallel sides,
• number of perpendicular sides,
• order of rotational symmetry,
• number of lines of symmetry,
• convex or concave,
• various combinations of the above.

Answer 2

Polygons are normally classed by how many sides they have.