Question

(a) angulos alternos externos:
(b) angulos alternos internos:
(c) angulos correspondientes:

Explanation:

Step1: Identify alternate exterior angles

Alternate exterior angles are non - adjacent and on opposite sides of the transversal. $\angle1$ and $\angle7$ are alternate exterior angles. Also, $\angle5$ and $\angle3$ are alternate exterior angles.

Step2: Identify alternate interior angles

Alternate interior angles are non - adjacent and on opposite sides of the transversal. $\angle2$ and $\angle8$ are alternate interior angles. Also, $\angle6$ and $\angle4$ are alternate interior angles.

Step3: Identify corresponding angles

Corresponding angles are in the same relative position. $\angle1$ and $\angle3$ are corresponding angles. Also, $\angle2$ and $\angle4$, $\angle5$ and $\angle7$, $\angle6$ and $\angle8$ are corresponding angles.

Answer:

(a) Alternos externos: $\angle1$ y $\angle7$, $\angle5$ y $\angle3$
(b) Alternos internos: $\angle2$ y $\angle8$, $\angle6$ y $\angle4$
(c) Correspondientes: $\angle1$ y $\angle3$, $\angle2$ y $\angle4$, $\angle5$ y $\angle7$, $\angle6$ y $\angle8$