pentahedron
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octahedron
A hexahedron is a solid with six plane faces, and a cuboid is a six-sided figure each face of which is a rectangle.
'Enneahedron' - a solid figure with nine faces
A pentagonal heptahedron. A heptahedron is a solid figure with seven faces, and a pentagon is a five-sided plane figure.
Yes and no. Yes = plane figure No = solid figure.