Question

In the given figure ,if AOB is a straight line.then angle AOC will be equal to:
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Answer 1

Answer:

angle AOC+angle COB=180°

=> 2x+30+2x+10=180

=> 4x=180-40

=> 4x=140

=> x=140/4=35

so, angle AOC=(2x+30)°=(2×35+30)°=100°