parallel planes
There is no "the" since there are infinitely many non-parallel planes. Two non-parallel planes are planes that intersect in a line.
A plane midway between the two given planes and parallel to them.
Parallel lines are two 1-dimensional objects that do not meet. Parallel planes are two 2-dimensional objects that do not meet.
two planes intersect in one line, or the planes could be parallel. by the way there is no such thing as skew planes...
parallel planes
There is no "the" since there are infinitely many non-parallel planes. Two non-parallel planes are planes that intersect in a line.
The circles could be in 2 planes that are parallel to each other. Lines and planes can be parallel. Lines of latitude are examples of circles that are in parallel planes.
No. Consider two adjacent faces on a cuboid. Both planes are parallel to the edge at which the intersect. But the fact that they do intersect illustrates that they are not parallel.
A plane midway between the two given planes and parallel to them.
Parallel lines are two 1-dimensional objects that do not meet. Parallel planes are two 2-dimensional objects that do not meet.
two planes intersect in one line, or the planes could be parallel. by the way there is no such thing as skew planes...
parallel
No. By definition, planes can be extended in all directions to infinity. If they are not parallel, they will intersect somewhere.
Yes. The opposite ends of any right prism consists of two congruent and parallel faces. Two planes are parallel if the vertical distance between them is always the same.
In geometry, two planes intersect in a line. The only time this is not true is if the two planes are parallel to each other.
If there are two unique, non-parallel planes in space, they will intersect, and their intersection will be a line.