Question

in adjoining figure, AOB is a straight line.find the value of x.Hence, find angle AOC and angle BOD

Answer 1

Hey bro in this figure we can clearly see that this forms a linear pair....

So simply... 3x-7+55+x+20=180°
4x+68=180..====> 4x=112==> x= 28°

So angle AOC=3x-7=84-7=77
Angle BOD=x+20=28+20=48°..

Hope it helps....

Answer 2

3x-7+55+x+20=180°

4x+68=180..====> 4x=112==> x= 28°

So angle AOC=3x-7=84-7=77

Angle BOD=x+20=28+20=48°..