What is a 9 sided figure called?

Answer by  ivycreek (25)

A nonagon has nine sides. The sides of a nonagon are of equal length and all the interior angles are 140 degrees. The total sum of these angles are 1260 degrees. The nonagon is classified as a regular polygon. The nonagon is studied in the plane geometry section of geomtry.

Answer by  wallaby78 (2293)

A nine sided figure is called a nonagon. A ten sided figure is called a decagon. If it has no sides at all it is a circle.