Answer:
Step-by-step explanation:
It is given that lines a, b, and c are parallel and m∠4=68°. Then, from the figure,
∠4=∠5=68° (Corresponding angles)
Now, ∠3+∠4=180° (Linear pair)
⇒∠3+68°=180°
⇒∠3=112°
As, ∠2 and ∠3 forms the alternate interior angle pair, thus ∠2=∠3=112°.
And, ∠1+∠2=180° (Linear pair)
⇒∠1+112°=180°
⇒∠1=68°.
Thus, ∠1=68°, ∠2=112°, ∠3=112°,∠4=68°and ∠5=68°.