Determine the interior angle at A, CAB.

The bearing of C from A is $025^\circ$. This means the angle measured clockwise from the North line at A to the line AC is $25^\circ$.
So, $\angle CAB = 25^\circ$.

The bearing of C from B is $337^\circ$. This is the angle measured clockwise from the North line at B to the line BC.
The angle measured counter-clockwise from the North line at B to the line BC is $360^\circ - 337^\circ = 23^\circ$.
So