Question

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Which statement is NOT true?

Two lines lie in one plane if and only if the lines are parallel.
If two coplanar lines do not intersect, then the lines are parallel.
If two lines are parallel, then they lie in one plane and do not intersect.
Two lines lie in one plane and do not intersect if and only if the two lines are parallel.

Answer 1

Two lines lie in one plane if and only if the lines are parallel.

Answer 2

how do you know

Answer 3

Logically speaking , A plane is flat. Meaning It's not parallel.

Answer 4

Right, two lines lie in one plane if an only if the lines are parallel is the correct answer.

Answer 5

thanks