Question

question 7. ab || cd ; m∠7 = 30°. what is m∠3? a. 50° b. 150° c. 30°

Explanation:

Step1: Identify angle - relationship

When two parallel lines ($AB\parallel CD$) are cut by a transversal, corresponding angles are equal. If $\angle7$ and $\angle3$ are corresponding angles (assuming the standard configuration of parallel - lines and transversal), then they have the same measure.

Step2: Determine the measure of $\angle3$

Since $m\angle7 = 30^{\circ}$ and $\angle7$ and $\angle3$ are corresponding angles, $m\angle3=30^{\circ}$.

Answer:

C. $30^{\circ}$