Question

If AOB is a straight line ,find the value of x.

∠AOC= 3x-7

∠COD =4x+27,∠BOD=2x-20​

Answer 1

Question

If AOB is a straight line ,find the value of x.

∠AOC= 3x-7

∠COD =4x+27,∠BOD=2x-20​

ANSWER

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°..