Question

in the triangular pyramid shown below, which lines are intersecting? jk and lm jm and kl jl and km jm and lm

Explanation:

Step1: Recall definition of intersecting lines

Intersecting lines share a common point.

Step2: Analyze each option

For $\overleftrightarrow{JK}$ and $\overleftrightarrow{LM}$, they don't share a common - point. For $\overleftrightarrow{JM}$ and $\overleftrightarrow{KL}$, they don't share a common - point. For $\overleftrightarrow{JL}$ and $\overleftrightarrow{KM}$, they don't share a common - point. For $\overleftrightarrow{JM}$ and $\overleftrightarrow{LM}$, they share the common point $M$.

Answer:

$\overleftrightarrow{JM}$ and $\overleftrightarrow{LM}$