Question

How many edges a pyramid has, whose base is a nine sided polygon?​

Answer 1

Answer:

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Answer 2

Answer:

As per question,

In a pyramid,

The number of faces of pyramid = one more than the number of sides of polygon base.

Means, faces = n + 1

The number of vertices of pyramid = one more than the number of sides of polygon base.

Means, vertices = n + 1

The number of edges of pyramid = two times the number of sides of polygon base.

Means, vertices = 2n