Angle ABC = 61 degrees, Angle OAB = 8 degrees Find the angle BCO.

Since the line OB splits the angle ABC into two angles BCO and OAB. According to the properties of angles, if a straight line splits an angle into two angles, then the sum of these angles will be equal to the value of the angle that it split. Therefore:
BCO = ABC – OAB.
BCO = 61 – 8 = 53.
Answer: angle ВСО = 53 degrees.



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