Question

1. 4) x = x =

Explanation:

Step1: Identify angle - relationship in 3

The two angles are vertical angles. Vertical angles are equal.
So $x = 60^{\circ}$

Step2: Identify angle - relationship in 4

The two angles are corresponding angles. Corresponding angles formed by parallel lines and a transversal are equal.
So $x = 41^{\circ}$

Answer:

In 3, $x = 60^{\circ}$
In 4, $x = 41^{\circ}$