If the lines are identical, then the whole lines.
If not they can either not meet at all or at a single point: the point of intersection.
A line. When two planes intersect, their intersection is a line.
ONLY a line can be formed by the intersection of two planes...and always.
The intersection of two lines is always a point or the line itself. The intersection of a line with plane also the same as above.
The intersection of two planes is a line. (or a massive explosion...lol)
It is a line.
If two distinct planes intersect, therefore their intersection is a line.
The intersection of two distinct planes is a line. The set of common points in the line lies in both planes.
If there are two unique, non-parallel planes in space, they will intersect, and their intersection will be a line.
A line.
A line
A line or edge.
a line