A hexagon.
A hexagon has 6 sides and 6 vertices.
A expample of a plane figure with 6 sides and 6 vertices is called a hexagon. hex means 6.
A shape with 7 sides.
a shape with 7 vertices
Since the number of sides and vertices is different, it cannot be a 2-dimensional shape. The only 3-dimensional shape with 4 vertices is a tetrahedron and that does not have 6 sides. Consequently, there is no such shape.
a hexagon
Polygon
Shape has fewer than 6 sides
a cube i guess
Hexagon
It is a plane figure (2-D) which has 6 sides and 6 vertices
It is a 6 sided hexagon