Cones have both a curved and a flat surface. They have a circular face on ... Triangular prisms have 5 flat faces. 2 are triangle shaped and 3 are rectangle shaped. Everyday things that have ...

A 3D shape with all straight edges and flat faces is a polyhedron. Other 3D shapes with least one curved surface are ... E\) = \(V\) + \(F\) – 2 The flat surface of a cube is a face.