Question

1. what conditions must be present for corresponding angles to exist? // ¿qué condiciones deben darse para que existan ángulos correspondientes?

Explanation:

Corresponding angles are formed when a transversal intersects two lines. For corresponding angles to exist, there must be two lines (they can be parallel or non - parallel) and one transversal that intersects these two lines. When the two lines are parallel, corresponding angles are equal, but the fundamental condition for their existence is the intersection of two lines by a transversal.

Answer:

For corresponding angles to exist, two lines (parallel or non - parallel) must be intersected by a transversal.