Consider the following for triangle ABC : 1. ( B+C 2 )= ( A 2 ) 2. ( B+C 2 )= ( A 2 ) 3. (B+C)= A 4. (B+C)=- A Which of the above are correct?

NDA 2017 Mathematics question

Consider the following for triangle ABC : 1. 2. 3. 4. Which of the above are correct?

Answer: (B)

In a triangle , so . Hence and

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Question ID VK-028620