If O is the circumcentre of triangle ABC and angle OBC = 35 degree, then the angel BAC  = ?
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2 Answers

The answer is 70 degrees

35 times 2 = 70 degrees
by
angle OBC =angle OCB ( since radius is 2 sides of triangle OBC. Isosceles triangle). angle BOC = 110. so angle BAC = 110/2 = 55
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