3A: Determine the value of angle 1 and provide a reason why. *
2 points
/30
64_
5/75°>
>

The answer is 45°
By determining the angles of triangle ACB (A=30°, B=45°, C=105° (total of 180°)) and knowing that angle 1 correlates to angle 4 ((1)°=(4)°), we can find angle 1, which is 45°, equal to angle 4.