Question

in the triangular prism shown below, which lines are intersecting? select all that apply. pr and su, qr and st, pq and ps, qr and su. lesson: parallel and perpendicular lines. parts of three - dimensional figures. not feeling ready yet? these can help: work it out. parallel, perpendicular, and intersecting lines

Explanation:

Step1: Recall definition of intersecting lines

Intersecting lines are lines that meet at a point.

Step2: Analyze $\overrightarrow{PR}$ and $\overrightarrow{SU}$

They do not meet, so they are not intersecting.

Step3: Analyze $\overrightarrow{QR}$ and $\overrightarrow{ST}$

They are parallel and do not meet, so they are not intersecting.

Step4: Analyze $\overrightarrow{PQ}$ and $\overrightarrow{PS}$

They meet at point $P$, so they are intersecting.

Step5: Analyze $\overrightarrow{QR}$ and $\overrightarrow{SU}$

They do not meet, so they are not intersecting.

Answer:

$\overrightarrow{PQ}$ and $\overrightarrow{PS}$