Question

suppose m∠3 = 109°. what is the measure of ∠5? > type the answer in the space provided. use numbers instead of words. m∠5 =

Explanation:

Step1: Identify vertical - angle relationship

$\angle3$ and $\angle1$ are vertical angles, so $m\angle1 = m\angle3=109^{\circ}$.

Step2: Identify corresponding - angle relationship

$\angle1$ and $\angle5$ are corresponding angles. Since the two lines are parallel (assumed from the transversal - line setup), corresponding angles are congruent. So $m\angle5=m\angle1$.

Answer:

$109$