The pentagon satisfies those criteria precisely.
Pentagon.
A pentagon which has 5 sides.
There are many shapes that are not hexagons. A hexagon has 6 edges, so anything that has more or less than that would not be a hexagon. It sounds like you have a paper with several pictures on it that you expect us to magically be able to see and we can't.
No. A hexagon can only have six sides. No more, no less.
A hexagon or pentagon will have obtuse angles (greater than 90 degrees). A triangle has angles that are all less than 90 and a square has only 90.
Square * * * * * Another Community answer which is hopelessly wrong! A decagon has 10 sides. A polygon with 4 fewer sides would have 6 sides and so it is a hexagon.
Hexagon
A quadrilateral has 4 sides anda hexagon has 6 sides. So the polygon between them is the one that has 5 sides. That is the pentagon.
It is a hexagon.
A quadrilateral, pentagon or hexagon.
You are an irregular hexagon.
An octagon is a polygon. The name refers to its shape, not its size. It can have an area of less than a billionth of a square foot to more than a billion square feet.