the flat surfaces of a solid figure are the
A sphere.
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.
A cylinder
pentagon
cylinder
A cube
A face is the flat surface on a solid figure. For example, a triangular prism has five flat surfaces and therefore five faces.
circle
a triangular base pyramid
sphere