Question

in the square pyramid shown below, which lines are intersecting? (overrightarrow{rv}) and (overrightarrow{tu}) (overrightarrow{st}) and (overrightarrow{uv}) (overrightarrow{ru}) and (overrightarrow{tu}) (overrightarrow{rs}) and (overrightarrow{tu})

Explanation:

Step1: Recall intersecting lines definition

Intersecting lines share a common point.

Step2: Analyze each option

• $\overrightarrow{RV}$ and $\overrightarrow{TU}$: Do not share a common - point.
• $\overrightarrow{ST}$ and $\overrightarrow{UV}$: Do not share a common - point.
• $\overrightarrow{RU}$ and $\overrightarrow{TU}$: Share point $U$.
• $\overrightarrow{RS}$ and $\overrightarrow{TU}$: Do not share a common - point.

Answer:

$\overrightarrow{RU}$ and $\overrightarrow{TU}$