A three-sided polygon is called a triangle. It consists of three straight sides and three angles, with the sum of the interior angles always equal to 180 degrees. Triangles can vary in shape, including equilateral (all sides equal), isosceles (two sides equal), and scalene (all sides of different lengths). The simplest form of a triangle is a closed figure with three vertices connected by straight lines.
It is a quadrilateral.
a triangle.
A nonagon is a nine-sided polygon.
It looks like a square with a triangle on top of it.
there are any pictures on this sit to show you try Google image or bing
A polygon
it look like a fifty sided shape
Like this
see related link below to see the 20 sided polygon
polyhedron
It is a seven-sided polygon
The Pentagon.
It is a quadrilateral.
a triangle.
A polygon is a closed three or more sided figure. It can not have any curves or intersecting lines.
A polygon is a closed three or more sided figure. It can not have any curves or intersecting lines.
It looks like a circle