Vertically opposite angles are equal. Angles on a straight line add up to 180&deg;.<br><br>
&bull; KL and MN are straight lines crossing each other<br>
&bull; Read the given angle from the diagram<br>
&bull; Use vertically opposite angles and straight-line properties<br>
&bull; Angle v = 43&deg;<br><br>
Final Answer: 43