There are many possible answers:
Some examples:
a sphere truncated by two planes not intersecting within the sphere,
an ellipsoid similarly truncated,
a torus (doughnut) with a segment removed,
a cylinder.
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the flat surfaces of a solid figure are the
A SPHERE has no vertices and no FLAT surfaces
The flat surface of a solid figure is called a face. For example, a rectangular prism has 6 flat surfaces and therefore 6 faces.
pentagon
cylinder