Question

which angle is adjacent to ∠tvs?
∠nvt
what is m∠nvs?
m∠nvs = °

Explanation:

Step1: Identify Adjacent Angle

Adjacent angles share a common side and vertex. $\angle TVS$ and $\angle NVT$ (if $V$ is common vertex, $VT$ common side) are adjacent.

Step2: Calculate $m\angle NVS$

If $\angle NVT$ and $\angle TVS$ are adjacent and form $\angle NVS$ (a straight angle), straight angle is $180^\circ$. So $m\angle NVS = 180^\circ$ (assuming diagram shows them as supplementary adjacent angles).

Answer:

(For the first question) $\angle NVT$ (assuming the diagram shows adjacent angles sharing a common side and vertex with $\angle TVS$)
(For the second question, assuming $\angle NVS$ is a straight angle or sum of adjacent angles, but since no diagram details are given, if we assume $\angle NVT$ and $\angle TVS$ are adjacent and form $\angle NVS$ as a straight angle, then) $180^\circ$ (but this is based on typical adjacent angle forming a straight line; more info from diagram needed for accuracy)