Definition:Distance between Parallel Planes

Definition

Let $P_1$ and $P_2$ be parallel planes.

The distance between $P_1$ and $P_2$ is defined as the length of a line segment joining $P_1$ and $P_2$ that is perpendicular to both.

Also see

• Results about distance between parallel planes can be found here.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): distance: 1.
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): distance: 1.