If alternate interior angles are equal, then the two lines are:
Parallel
When a transversal cuts two lines, if a pair of alternate interior angles is equal, this is both a necessary and sufficient condition for the two lines to be parallel.
This is a standard converse result of the parallel lines and transversal theorem: equal alternate interior angles imply the lines never meet, i.e., they are parallel.
Similar Questions
A point P divides the line segment joining A(2, 4) and B(8, 16) internally in the ratio 1 : 2. Find the coordinates of P.
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Important Questions from Lines
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P(m cos 2α, m sin 2α) and Q(m cos 2β, m sin 2β) ?
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The graph of the in-equation 2x - 5y ≤ 5 in Cartesian plane is:
