Question

Find the number of faces of a polyhedron having 9 edges and 6 vertices.​

Answer 1

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Let x = the number of faces on the polyhedron.

Now, according to Euler's polyhedron formula:

Number of vertices - number of edges+ number of faces =2

==> 6 - 9 +x = 2

==> x = 5

then the polyhedron has 5 faces.

Answer 2

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