Question

what are corresponding angles​

Answer 1

If two lines are parallel,the corresponding angles are equal

Answer 2

Answer:

Because of the Corresponding Angles Theorem, you already know several things about the eight angles created by the three lines:  

If one is a right angle, all are right angles

If one is acute, four are acute angles

If one is obtuse, four are obtuse angles

All eight angles can be classified as adjacent angles, vertical angles, and corresponding angles.