Answer:

nonagon

Answer	Crossword Clue
NONAGON	Nine-sided figure
NONAGON	Nine-sided shape
NONAGON	Its internal angles total 1,260 degrees

NONAGON	Geometric figure
NONAGON	Nine-sider
NONAGON	Nine-sided figure.
NONAGON	Polygon of nine angles.
NONAGON	Figure with nine sides.
NONAGON	Nine-angled figure.
NONAGON	Variety of polygon.
NONAGON	Geometrical figure.

NONAGON	Plane figure.
NONAGON	Many-sided figure
NONAGON	Defective stop sign?
NONAGON	Odd-shaped figure
NONAGON	A regular one has internal angles of 140 degrees
NONAGON	Figure on turning shrew on (7)
NONAGON	It has nine angles and nine sides
NONAGON	Shape of every Baha'i temple