I need help in a and b part of question 1

The measure of angle 9 is 97 degree.
Tha angle 1 and angle 9 are correspoding angle. So,
[tex]\begin{gathered} \angle1=\angle9 \\ \angle1=97^{\circ} \end{gathered}[/tex]The sum of angle 1 and angle 2 is 180.
Determine the measure of angle