Question

a pair of parallel lines are intersected by a transversal as shown below. use the angle measure given to determine (mangle x). (mangle x=square^{circ})

Explanation:

Step1: Identify angle - relationship

When two parallel lines are intersected by a transversal, vertical - angles are equal. The given angle of 77° and ∠x are vertical angles.

Step2: Determine the measure of ∠x

Since vertical angles are equal, m∠x = 77°.

Answer:

77