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JEE Main2004MathematicsProperties of TrianglesActual

The sides of a triangle are , and 1+ for some 0 < < 2 . Then the greatest angle of the triangle is

Options

  1. A60^
  2. B90^
  3. C120^
  4. D150^

Correct answer

C. 120^

Step-by-step solution

Greatest side is 1+ , by applying cos rule we get greatest angle =120^ .

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