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It has 1 hexagonal base and 7 faces (hexagonal base and 6 triangular planes that intersect at a point at the top). It is convex.
A pentagonal pyramid has five planes of symmetry. Each plane of symmetry passes through the apex of the pyramid and divides the pyramid into two equal halves. These planes of symmetry can be visualized as slicing the pyramid vertically or diagonally in different orientations to create mirror images.
a hexagonal pyramid has 8 faces