A (genus-0) polyhedron must satisfy Euler's formula:
V + F - E = 2.
Setting V, E, F equal to the same value, say, X, we get
X + X - X = 2
X = 2.
A solid with two edges, vertices and faces is called a "digonal hosohedron", but it is not usually considered a three-dimensional figure, in euclidean space.
A rhombus is a two dimensional figure while the concept of {faces, vertices and edges} is relevant to 3-dimensional shapes.
A trapezium has 4 vertices and 4 edges or sides. It is a two dimensional figure so it has only one "face".
A cube
It is a cube.
An octagon is a 2-dimensional (flat) figure, with 8 sides and 8 vertices.
A rhombus is a two dimensional figure while the concept of {faces, vertices and edges} is relevant to 3-dimensional shapes.
A rectangular prism and a cube! :)
A rectangular prism.
A rectangular prism and a cube! :)
A trapezium has 4 vertices and 4 edges or sides. It is a two dimensional figure so it has only one "face".
A cube
It is a cube.
It is the intersection of two planes or the line joining two vertices.
An octagon is a 2-dimensional (flat) figure, with 8 sides and 8 vertices.
A hexagon is a plane (2-dimensional) figure with 1 face, 6 vertices and 6 sides (which may be called edges).
Triangular Prism Triangular Prism 5 faces, 9 edges 6 vertices
A three-dimensional figure with five faces, nine edges, and six vertices is called a triangular prism. It consists of two triangular bases and three rectangular lateral faces. The triangular bases contribute three edges each, and the three additional edges connect the vertices of the triangles, resulting in the total of nine edges. The six vertices come from the three vertices of each triangular base.