sometimes
Skew Lines. :)
2
they will always meet
Think you just answered your own question. A plane is a line. Two planes= two lines.
sometimes skew
Sometimes.Perpendicular lines always intersect.Parallel lines never intersect.Therefore, intersecting lines may be perpendicular, but not always.
sometimes
Two lines in two intersecting planes can be parallel, intersecting, or skew.
Intersecting planes!
Skew Lines. :)
One.
2
No, intersecting lines can intersect at any angle.
If they are straight lines, then they define a plane in which both lines lie.
they will always meet
Think you just answered your own question. A plane is a line. Two planes= two lines.