Question

answer attempt 1 out of 2
$overline{ru}$ and $overline{sr}$ are
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parallel
perpendicular
skew

Explanation:

Parallel lines are in the same plane and never intersect. Perpendicular lines intersect at a right - angle. Skew lines are non - parallel and non - intersecting and exist in 3 - D space. Since $\overline{RU}$ and $\overline{SR}$ share a common point $R$, they are neither parallel nor skew. They are perpendicular if they form a right - angle at $R$. Without further information about the angle between them, we assume they are perpendicular based on the context of the problem type.

Answer:

perpendicular