Question

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Answer 1

2nd question answer is

140°

Step-by-step explanation:

2nd explanation

because

in triangle OCA

OA=OC therefore Angle OAC = angleOCA

Sum of angles of a triangle is 180°

angle A+O+C = 180°

40°40° Angle O = 180°

Angle O = 100 °

In triangle OCB

OB=OC therefore angles are also equal

so, angle COB = 120°

angle x + angle AOC + angle COB = 360°

angle x + 100° + 120° =360°

angle x + 220° = 360°

angle x = 360°-220°

angle x = 140°

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