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In a triangle ABC the measure of angle A is 50° and the external bisectors of angle B and angle C meet at O. The measure of angle BOC is  
  • a)
    140°
  • b)
    40°
  • c)
    105°
  • d)
    65°
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
In a triangle ABC the measure of angle A is 50° and the external b...
We have x + y + 50 = 1800 ⇒ x + y = 1300.  
BO and CO are the external bisectors of angle B and angle C. 
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Most Upvoted Answer
In a triangle ABC the measure of angle A is 50° and the external b...
Degrees.
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In a triangle ABC the measure of angle A is 50° and the external bisectors of angle B and angle C meet at O. The measure of angle BOC is a)140°b)40°c)105°d)65°Correct answer is option 'D'. Can you explain this answer?
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