Question

1. choose the correct answer.

which lines are parallel?
rs and nr
ts and qt
rs and ts
rs and qt

Explanation:

Step1: Recall the definition of parallel lines

Parallel lines are lines in a plane that do not intersect.

Step2: Analyze each option

• For $\overleftrightarrow{RS}$ and $\overleftrightarrow{NR}$: These lines intersect at point $R$, so they are not parallel.
• For $\overleftrightarrow{TS}$ and $\overleftrightarrow{QT}$: These lines intersect at point $T$, so they are not parallel.
• For $\overleftrightarrow{RS}$ and $\overleftrightarrow{TS}$: These lines intersect at point $S$, so they are not parallel.
• For $\overleftrightarrow{RS}$ and $\overleftrightarrow{QT}$: In the given figure (assuming it is a rectangular - prism - like figure), $\overleftrightarrow{RS}$ and $\overleftrightarrow{QT}$ do not intersect and are in the same orientation (based on the properties of the 3 - D shape's edges).

Answer:

$\overleftrightarrow{RS}$ and $\overleftrightarrow{QT}$