Answer:
3. They are always intersecting lines.
Explanation:
The perpendicular lines are always intersecting lines but intersecting lines are not always perpendicular to each other.
Why others were false:
- Two lines are perpendicular if and only if they form a right angle. Perpendicular lines (or segments) actually form FOUR right angles, even if only one of the right angles is marked with a box.
- Two distinct LINES intersecting each other at 90° or a right angle are called perpendicular lines.
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- PARALLEL lines are equidistant from each other. This means that every point on one line is always the same distance from the other line as every other point on that line.