Question

use the parallel lines shown. what is m∠1? a 42° b 48° c 96° d 138°

Explanation:

Step1: Identify angle - relationship

The 138 - degree angle and ∠1 are corresponding angles. Corresponding angles formed by parallel lines and a transversal are congruent.

Step2: Determine the measure of ∠1

Since the corresponding angle to ∠1 has a measure of 138°, then m∠1 = 138°.

Answer:

D. 138°