You will be given a definition of a task first, then some input of the task.
In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

Cuboids have six faces , which form a convex polyhedron .
Output:
In geometry , a cuboid is a convex polyhedron bounded by six quadrilateral faces , whose polyhedral graph is the same as that of a cube .