A pyramid has 28 edges, how many side faces does it have?

univerkov | June 16, 2021 | education

N – a coal pyramid has (N + 1) vertex, (N + 1) face and 2 * N edges.

Since, by condition, the pyramid has 28 faces, then 28/2 = 14, so the pyramid is 14-sided.

Fourteen coal pyramids have (14 + 1) = 15 faces (taking into account the base of the pyramid).

Answer: The pyramid has 15 faces (including the base).

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