Question

A
Polyhedron has 15 edges and 10 vertices . how many faces does this polyhedron have
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Answer 1

Answer:

In geometry, the pentagonal prism is a prism with a pentagonal base. It is a type of heptahedron with 7 faces, 15 edges, and 10 vertices.

Faces by sides: 5+2

Elements: F = 7, E = 15; V = 10 (χ = 2)

Dual: Pentagonal dipyramid

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Answer 2

Answer:

For any polyhedron:

Faces+Vertices=Edges+2

So in our example:

Faces+10=15+2=17

So:

Faces=17−10=7

its correct method and answer