Answer
A segment can bisect another segment but not a line. A line can bisect a segment but not a line.
Work Step by Step
Lines cannot be bisected because they are infinitely long and therefore have no midpoint.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.