# How do I calculate the distance between the two parallel planes #x - 2y + 2z = 7# and #2y - x - 2z = 2#?

##### 1 Answer

Jan 4, 2016

Choose a point in any of the planes and calculate the distance between this point and the other plane.

In case

#### Explanation:

If the planes are parallel, any point of one plane is at the same distance to the other plane.

Choosing a point in plane 1, with

Rearranging equation of second plane:

Formula of distance between a point and a plane: