If in a triangle ABC, b+c 11 = c+a 12 = a+b 13 , then A is equal to

JEE Main Mathematics question

Not in JEE syllabus

If in a triangle , , then is equal to

Answer: (A)

Let each ratio equal : , , . Adding: , so ; hence

Create a free account to read the complete working, and practise questions like this in a timed test.

Question ID VK-008440