Question

1. look at the figure. what is the intersection of planes qtu and rsv? the planes do not intersect.

Explanation:

Step1: Recall plane - intersection property

Two non - parallel planes intersect in a line.

Step2: Identify the common line

In the given cube, by observing the positions of planes QTU and RSV, we can see that the common line between them is $\overrightarrow{ST}$.

Answer:

$\overrightarrow{ST}$