Question

Name a pair of lines that are perpendicular

Answer 1

Only if there slopes are negative

Answer 2

Two distinct lines intersecting each other at 90° or a right angle are called perpendicular lines. Here, AB is perpendicular to XY because AB and XY intersect each other at 90°. The two lines are parallel and do not intersect each other. They can never be perpendicular to each other.

Explanation:

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