Question

which segment is opposite to ∠j?
triangle with right angle at z, vertices y, z, j
answer
○ \\(\overline{zj}\\) ○ \\(\overline{yj}\\) ○ \\(\overline{yz}\\)

Explanation:

In a triangle, the segment opposite an angle is the side that does not form the angle (i.e., it is across from the angle and not connected to the vertex of the angle). For $\angle J$, the vertex is point $J$, so the opposite segment is the one that does not include $J$, which is $\overline{YZ}$.

Answer:

$\overline{YZ}$