Question

which segment is adjacent to $\angle n$?
(image of triangle bcn with right angle at c)
answer
$\overline{bc}$ $\overline{bn}$ $\overline{cn}$

Explanation:

Adjacent segments to an angle are the two sides that form the angle at the vertex. At $\angle N$, the segments that meet to create the angle are $\overline{BN}$ and $\overline{CN}$.

Answer:

$\overline{BN}$, $\overline{CN}$