Question

select the most precise and correct definition of perpendicular lines from among those that are given. choose 1 answer: a two distinct lines are perpendicular if they are as far from being parallel as possible. b two lines are perpendicular if they have opposite slopes. c two lines are perpendicular if they meet at one point and one of the angles at their point of intersection is a right angle.

Explanation:

Perpendicular lines are defined as two lines that intersect at a single - point and form a right - angle (90 degrees) at the intersection. Option A is too vague, and option B is incorrect because two lines with opposite slopes are not necessarily perpendicular (they must be negative reciprocals).

Answer:

C. Two lines are perpendicular if they meet at one point and one of the angles at their point of intersection is a right angle.