Question

please give the correct answer with steps....​

Answer 1

Answer:

hope this will helpful.

Answer 2

Answer:

80°

Step-by-step explanation:

4:5

We can write it as 4x and 5x

So 4x+5x=180°[ Linear pair]

9x=180°

x=20°

4x=4×20°=80°

Therefore, angle AOD=COB( Vertically opposite angles)

ANGLE COB=80°