
Heptagon (7-sided polygon)

Nonagon (9-sided polygon)

Square (4-sided polygon)

Hexadecagon (16-sided polygon)

Triangle (3-sided polygon)

Pentagon (5-sided polygon)

Hexagon (6-sided polygon)

Tridecagon (13-sided polygon)

Decagon (10-sided polygon)

Hendecagon (11-sided polygon)

Enneadecagon (19-sided polygon)

Octadecagon (18-sided polygon)

Octagon (8-sided polygon)

Heptadecagon (17-sided polygon)

Dodecagon (12-sided polygon)

Pentadecagon (15-sided polygon)

Tetradecagon (14-sided polygon)

Icosagon (20-sided polygon)