A polygon
it look like a fifty sided shape
Like this
see related link below to see the 20 sided polygon
It is a seven-sided polygon
polyhedron
The Pentagon.
a triangle.
It is a quadrilateral.
It looks like a circle
A nonagon is a nine-sided polygon.
No such thing . . . A rectangle is a four sided polygon and a hexagon is a six sided polygon. How they could mix, I have no clue.