Shapes have sides. Do you mean, what shape has 6 sides or, what solid has 6 faces?
the sides of a shape! ex: a cube has 6 faces!
cuboid
trapezium
No. A rectangle is a two-dimensional shape with four sides and four interior angles measuring 90 degrees. A shape with six square faces would be a cube.
The number of flat sides on the shape eg the cube has 6 flat faces
A cube or a cuboid would fit the given description
Could it be a hexahedron. A cube has 6 sides and they are squares. A rectangular prism has 6 faces that are rectangles.
Triangular Based Pyramid
A hexagon has 6 sides. A cube has 6 faces.
Strangely enough, a 6 sided hexagon has 6 sides! In fact, if it did not have 6 sides, it would not be a hexagon. A hexagon also has 6 vertices. It is a two dimensional shape and so does not have faces, although some people do consider it to have one face.
A solid shape with 6 faces, yes. A plane shape with 6 sides is a hexagon.