# What a face/facet of a cardboard box is called? a piece of wall?

In geometry, a cube is a three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex. A cardboard box could be viewed as a cube.

A cube has 6 faces, 12 edges, and 8 vertices. What a face/facet of a cardboard box is called in daily life? a piece of wall?

• You shouldn’t use “a piece of wall” here. The “side” of a box is a complete “wall” of the box, not just a “piece” of it. Jan 24, 2020 at 0:29
• @OrbitalAussie Thanks for your comments. so, it is just a wall, right? Jan 24, 2020 at 0:47
• Yes. The four vertical parts can be called either a “wall” or a “side“. Jan 24, 2020 at 4:04
• @OrbitalAussie Thank you so much! What is this type of top called, which distinguishes from another type of top Jan 24, 2020 at 4:54
• There is no particular name here, just some possible descriptions, such as (for the box pictured here): “the four flaps forming the top of the box”. And for your other picture: “the flap forming the top of the box”. Jan 24, 2020 at 5:09