lines a and b are parallel. find the measure of ∠a. m∠a = ?°
lines a and b are parallel. find the measure of ∠a. m∠a = ?°
Answer
Explanation:
Step1: Identify angle - relationship
When two parallel lines are cut by a transversal, corresponding angles are equal. Angle $\angle a$ and the $55^{\circ}$ angle are corresponding angles.
Step2: Determine the measure of $\angle a$
Since corresponding angles are equal, $m\angle a = 55^{\circ}$.
Answer:
$55$