I don't think such a shape exists. If this is about 2D shapes, the closest would have to be either a nonagon (but that has nine angles) or an octagon (but this only has eight sides). So yeah, I don't think your shape exists.
It adds up to 1260°, so 140° each angle
A 2d nine sided shape is called a nonagon.
Either a nonagon or an enneagon. Whichever floats your boat.
A nonagon is a nine sided shape.
A nine sided shape or polygon is called a nonagon.
A nine sided POLYGON is called a nonagon. Any plain shape bounded by nine straight sides is a nonagon.
A 39-sided shape is called a "triacontaenneagon." The name is derived from the Greek prefixes "triaconta-" (meaning thirty) and "-enneagon" (meaning nine-sided polygon). The triacontaenneagon has 39 sides, 39 angles, and 39 vertices.
Nonagon
It is called a nonagon and/or an enneagon. They belong to the greater family of polygons.
Nonagon
a nonagon =]
A nonagon