Question

ining lines in three dimensions
are the lines in the diagram perpendicular, parallel, skew, or none of these?
l and m:
l and n:
m and n:

Explanation:

Step1: Analyze lines \(l\) and \(m\)

Lines \(l\) and \(m\) are in the same plane \(A\), and they do not intersect and are not parallel.

Step2: Analyze lines \(l\) and \(n\)

Lines \(l\) and \(n\) are not in the same plane, and they do not intersect.

Step3: Analyze lines \(m\) and \(n\)

Lines \(m\) and \(n\) intersect at a right - angle.

Answer:

\(l\) and \(m\): skew; \(l\) and \(n\): skew; \(m\) and \(n\): perpendicular