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Two lines lie in one plane if and only if the lines are parallel?
Wiki User
∙ 13y ago
Two lines are coplanar iff they are parallel OR intersect.
Wiki User
∙ 13y ago
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Two lines lie in one plane and do not intersect if and only if the two lines are parallel?
True
Are two lines parallel if they do not intersect?
Yes, but only if they are straight lines in the same plane.
What does not have a point of intersection?
Two parallel lines, a plane and a line in a plane parallel to it.
Are two lines from the same plane parrellel?
They can be, but not necessarily. If two lines in the same plane never intersect, they are parallel. Though, two lines can exist in the same plane without being parallel. Ie, two lines that intersect at a 90 degree angle are perpendicular. Most lines in a plane aren't parallel.
Which in a two lines in a plane do not intersect?
Parallel lines
If Two lines lie in one plane and do not intersect if and only if the two lines are parallel is this true?
Yes [in the Euclidean plane].
Two lines lie in one plane and do not intersect if and only if the two lines are parallel?
True
Are two lines parallel if they do not intersect?
Yes, but only if they are straight lines in the same plane.
Two lines in the same plane that do not intersect?
They are parallel lines
In a coordinate plane the two nonvertical lines are parallel if and only if they have what slope?
-1 :)
What does not have a point of intersection?
Two parallel lines, a plane and a line in a plane parallel to it.
What are two lines on the same plane that do not intersect?
Two lines that do not intersect on the same plane are Parallel lines.
Are two lines from the same plane parrellel?
They can be, but not necessarily. If two lines in the same plane never intersect, they are parallel. Though, two lines can exist in the same plane without being parallel. Ie, two lines that intersect at a 90 degree angle are perpendicular. Most lines in a plane aren't parallel.
Which in a two lines in a plane do not intersect?
Parallel lines
If two lines do not intersect must they be parallel?
If the two lines lie in the same plane, and they do not intersect, then they are parallel. If they are not in the same plane, and do not intersect, then they are called skew lines.
If two parallel planes are cut by a third plane the lines of intersection are?
Parallel lines.
Why do two lines not intersect in a plane?
Because they are parallel lines.
