Question

Lines are parallel if they do not intersect. prove the above with suitable diagram

Answer 1

Solution:-
Parallel lines are all equally apart as shown by (A) and (B) through diagram.
Non-parallel lines are not equally far apart as shown in (C) and (D) through diagram.
If the two lines are parallel then the sum of the angles on one side will be equal to 180 degrees.

Answer 2

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