Definition:Prism/Opposite

Definition

 * Prism.png

Let $P$ be a prism whose bases are $P_1$ and $P_2$.

The opposite face of the base $P_1$ is the base $P_2$.

In the above example, the base $ABCDE$ is opposite $FGHIJ$.

Also known as
The opposite face can also be referred to as the opposite plane.