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In which polyhedron has 6 faces, 8 vertices and 12 edges?
A) Cube
B) Sphere
C) Triangular Prism
D) Cone

Answer
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Hint: We have to find which polyhedron has 6 faces, 8 vertices and 12 edges. Polyhedron can be defined as a three- dimensional structure which is made up of a finite number of polygonal faces. Generally, polyhedrons are named according to the number of faces.

Complete step by step answer:
In Euclidean geometry a polyhedron can be defined as a three- dimensional structure which is made up of a finite number of polygonal faces and they are named according to the number of faces. The boundary which is in between the interior and the exterior of a solid is a polyhedron.
The polyhedron is made up of three parts namely Face, Vertex and Edge.
A face is a flat surface that makes up a polyhedron which is a regular polygon.
An edge is the region where the two flat surfaces meet to form a line segment.
A vertex which is also known as a corner is a point of intersection of the edges of the polyhedron.
Here, we have to find which polyhedron has 6 faces, 8 vertices and 12 edges.
A cube is a polyhedron which has 6 faces, 8 vertices and 12 edges and it has three squares that meet at each vertex.
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Hence, Option (A) is correct.

Note:
A sphere has 1 face, 0 edge and 0 vertex.
A triangular prism has 5 faces, 6 vertices and 9 edges.
A cone has 2 faces, 1edge and 1 vertex.
In Euclidean geometry there is a theorem known as Euler theorem named after Leonhard Euler which gives us a relation between the number of faces, vertices and edges of any polyhedron. The formula is given by F+V=E+2 where F denotes the number of faces, V denotes the number of vertices and E denotes the number of edges of polyhedrons.