Question

question 7 of 49 if ∠3 measures 123°, what is the measure of ∠7? a bridge crosses over the madison river. the opposite banks of the river are parallel and the bridge is a transversal. a. 123° b. 90° c. 180° d. 57°

Explanation:

Step1: Identify angle - relationship

$\angle3$ and $\angle7$ are corresponding angles. When two parallel lines are cut by a transversal, corresponding angles are congruent.

Step2: Determine the measure of $\angle7$

Since $\angle3 = 123^{\circ}$ and $\angle3\cong\angle7$, then $\angle7 = 123^{\circ}$.

Answer:

A. $123^{\circ}$