Answer:
[tex]\angle 3 \cong \angle 5\\\angle 2 \cong \angle 8\\\angle 7 \cong \angle 1\\\angle 6 \cong \angle 4[/tex], by vertical angles.
Step-by-step explanation:
Notice that we have to pair of non-parallels lines and a transversal.
Also, you can observe in the image angles 3 and 5, 2 and 8, 7 and 1, 6 and 4, all of these pairs are vertical angles, which means they are congruent by definition.
Therefore, the congruence of each pair are:
[tex]\angle 3 \cong \angle 5\\\angle 2 \cong \angle 8\\\angle 7 \cong \angle 1\\\angle 6 \cong \angle 4[/tex]
