Question

question no.8 a,b,c plz

Answer 1

here is your answer hope it will help you

Answer 2

Angle AOC = 42 degree
Angle BOD = 42 degree (vertically opposite angles are equal)
Angle AOD = Angle COB (vertically opposite angles are equal)
ANGLE AOD+ANGLECOB+ANGLE BOD+ANGLE AOC = 360 degree
AOD+COB+42+42 = 360
AOD+COB = 360-84
AOD+COB = 276
2AOD = 276 (AOD = COB)
AOD = 276/2
AOD = COB = 138 degree
So, AOD = 138 degree
COB = 138 degree
AOC = 42 degree
BOD = 42 degree
I hope, it will help you