An edge is an area of a 3D figure where two faces meet to form a line segment.
edge
Rectangular prism
A cylinder.
Technically it is impossible for a 3d figure to have 3 faces. The least amount of faces that are possible is four.
They are the sets of points (or lines) where two faces meet.
An edge is an area of a 3D figure where two faces meet to form a line segment.
edge
pentagonal prism
cuboid
Since a face of a 3d figure is the same as a side, you have two faces sharing a face! The result is lots of coincident faces!
A rhombohedron, a parallelepiped are two.
An octagonal prism.
a cube
a piramid
Rectangular prism
a pyramid