Question

in the rectangular prism shown below, which lines are intersecting? ij and ef ij and cd ij and cg fj and ij

Explanation:

Step1: Recall intersecting - lines definition

Intersecting lines meet at a point.

Step2: Analyze each option

• $\overleftrightarrow{IJ}$ and $\overleftrightarrow{EF}$ are parallel.
• $\overleftrightarrow{IJ}$ and $\overleftrightarrow{CD}$ are skew (not in the same plane and do not intersect).
• $\overleftrightarrow{IJ}$ and $\overleftrightarrow{CG}$ are skew.
• $\overleftrightarrow{FJ}$ and $\overleftrightarrow{IJ}$ meet at point $J$.

Answer:

$\overleftrightarrow{FJ}$ and $\overleftrightarrow{IJ}$