Question

If O is circumcentre of acute angled triangle ABC, if ∠  BOC = 150˚  then  ∠ BAC = ?

A 30° Correct Answer Incorrect Answer
B 65° Correct Answer Incorrect Answer
C 70° Correct Answer Incorrect Answer
D 75° Correct Answer Incorrect Answer

Solution

If O is circumcentre of acute angled triangle ABC, then  ∠  BOC = 2 ∠ BAC  150 = 2   ∠ BAC  ∠ BAC = 750

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