The number of edges a pentagonal pyramid has is ___

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Solution

The correct option is A
10

A pentagonal pyramid has 6 faces and 6 vertices.

i.e. F = 6, V = 6

We know :

F + V - E = 2

6 + 6 - E = 2

$∴$ E = 10

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Similar questions

A pentagonal pyramid has ___ edges.

State, the number of faces, number of vertices and number of edges of :
(i) a pentagonal pyramid
(ii) a hexagonal prism

What is the number of edges in a pyramid with pentagon as base?

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