Question

.in figure perpendicular to OAa
abs​

Answer 1

Solution

ang(AOC)=90°-49°=41°

now...

ang(COD)=180°(as straight line)

therefore...

ang(AOD)=180°-ang(AOC)

=180°-41°

=139° (ans)

Answer 2

Step-by-step explanation:

solve:.OA+<BOC=180

=OA+49=180

=OA=180-49

=OA=131

<BOC+<AOD=180

49+<AOD=180

AOD=180-49

AOD=131 ans

I hope it will help you mark me.