Maths-
General
Easy

Question

If in a triangle open parentheses 1 minus fraction numerator r subscript 1 end subscript over denominator r subscript 3 end subscript end fraction close parentheses= 2, then the triangle is-

  1. Right angled  
  2. Isosceles  
  3. Equilateral  
  4. None of these  

The correct answer is: Right angled

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