We're only given one angle: the angle that measures 35°.
This angle and ∠1 are supplementary angles, meaning they add up to 180°. To find ∠1, subtract 35 from 180:
180 - 35 = 145°
The angle and ∠2 are corresponding angles, meaning they are on the same sides of the diagonal line and the transversal.
Corresponding angles are always equal.
Therefore, ∠2 = 35°.
∠1 = 145°
∠2 = 35°