Question

please help me in finding the answer fast

Answer 1

Answer:

60°

Step-by-step explanation:

the answer of b=60 so it's 60°

Answer 2

Answer:

<a+60°=180°( interior angles sum = 180°) => 180° - 60° = 120°

so, <a = 120°

<a = <b ( corresponding angle)

So, <b = 120°

I hope it will help you.