Which of the following represents the number of faces, edges and vertices of a pentagonal pyramid respectively?

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A 5,10,6
B 6,10,6
C 6,15,6
D 5,10,5

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Answer: B. 6,10,6

• Faces (6): 1 pentagonal base + 5 triangular lateral faces
• Edges (10): 5 base edges + 5 edges connecting to the apex
Vertices (6): 5 vertices on the pentagonal base + 1 apex vertex

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Which of the following represents the number of faces, edges and vertices of a pentagonal pyramid respectively?

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