There cannot be a 3-d shape all of whose faces are regular hexagons.
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that claim above is not true, because for example a classic soccerball consists of hexagons.
It's called, not altogether surprisingly, a hexagonal prism. If the bases were hexagons and the other faces were triangles, it would be a hexagonal antiprism.
If by faces you mean sides, then lots. Parallelograms and squares come to mind but I'm sure there are more (hexagons for would be another).
A hexahedron is a three-dimensional figure with six identical faces - in other words, a cube. So a hexahedron is not made up of hexagons at all, but of squares. However, if you were to balance a cube on one of the vertices, the horizontal plane cutting the cube in half would make a cut in the shape of a regular hexagon. Four such regular hexagons can be found in the cube.
A standard sphere, like a ball, has no flat faces; it is a three-dimensional shape with a continuous curved surface. Therefore, it can be said to have zero faces. However, if you're referring to a polyhedral ball, such as a soccer ball, it is made up of multiple flat faces, typically hexagons and pentagons. In that case, the number of faces would depend on the specific design of the ball.
If by "vertex," you mean "apex," than any pyramid would fit the description.
I would mostly say yes if it was a cube but I don't know
The 3d shape that have five faces would be a triangular prism **************** or a pyramid
Two hexagons can create various shapes depending on how they are combined. If placed side by side, they can form a larger hexagon or a more complex polygon. Additionally, overlapping two hexagons can create a new shape with a unique outline, and their combined area would simply be the sum of the areas of the two hexagons.
Since a cube has 6 faces, you would be looking for a solid shape with only 2 faces and no such solid exists.
the other faces on a pentagonal prism would be rectangular
Its a Octagon * * * * * No. An octagon is a shape with 8 sides. 8 faces implies a 3-dimensional object, which would have to be an octahedron.
The shape with all triangular faces is called a tetrahedron. A tetrahedron has four triangular faces, six edges, and four vertices. It is the simplest three-dimensional shape in geometry and is a type of polyhedron. If you're looking for a shape with eight triangular faces, that would be a triangular bipyramid.