Question

class 9 lesson 6 lines and angles

Answer 1

Answer:

angle ACB + angle COB = 180° { linear pair of angles}

50°+(2y-2)=180°

2y-2=180-50

2y-2=130

2(y-1)=130

y-1=130/2

y=65+1

y=66°

Answer 2

Answer:

I hope it will benefit you buddy...

please please follow me.... please..