A trapezoid.
QuadrilateralThis is Tha OffiSHAl;;&& FiNAL ANSWER
a trapezoid
A polygon with 3960 sides is called a 3960-gon. The number of sides in a polygon can be simply referred to by its name, so a polygon with 3960 sides has exactly 3960 sides.
There is no particular name. It need not be a regular polygon - for example, consider a stretched hexagon.
It is a Rectangle
The name of a polygon with 15 sides is a pentadecagon
OCTAGON spelled exactly how it is.For extra a polygon is a shape that...:Has no open spacesAlways has straight linesCannot intersect
parallelogram or a rhombus * * * * * Incorrect. A parallelogram or rhombus have two pairs (ie 4) of parallel sides, and that is not the same as exactly two parallel sides. The correct answer is any polygon with with four or more sides of which only two are parallel. The only one of these with a specific name is a quadrilateral and the name is a trapezium.
There is no formula for how many sides there are in a polygon; the name of the polygon shows how many sides it has.
A pentagon is the polygon with 5 sides.
A polygon with seven sides is a heptagon.
There is no name because such a polygon does not exist. A polygon must have at least three sides.