Question

pls help me with this ​

Answer 1

Answer:

angleDOB=AngleAOC(Vertically opposite angle)

AngleDOB=42

AngleCOB=180-42=138=AngleDOA(vertically opposite angle)

hope it helps

mrk as brainliest

Answer 2

Given,

<AOC=42°

Now,

=> <AOC+<AOD=180° (L.P)

=> <AOD=180°- 42°

=> <AOD=138°

Now,

<BOD=<AOC=42° (V.O.A)

Similarly,

<AOD=<COB=138°. (V.O.A)

So,

<AOD=138°

<BOD=42°

<COB=138°

Hope it'll help you.....