Question

in the following figure in OB is lies find x

Answer 1

simple he 180-45=135 ...
135/3=x ...

x=45

Answer 2

As AB is a line the Angle formed is of 180 degree.

Now,
Angle AOC + Angle COB == 180 Degree.
> 45 degree + 3x == 180
> 3x == 180 - 45
> 3x == 135
> x == 135\3
> x == 45 degree ANS.

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