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JEE Main Mathematics question

MathematicsSolution of TrianglesJEE Main

Not in JEE syllabus

Consider a and let , and denote the lengths of the sides opposite to vertices , and respectively. If , and the area of the triangle is , is obtuse and denotes the radius of the incircle of the triangle, then is equal to .

Answer: 3

Solution

Area: , so . Since is obtuse, and $

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Question ID VK-008621