Maths-
General
Easy

Question

In an equilateral triangle the in-radius and the circum-radius are connected by -

  1. r = 4R  
  2. r =fraction numerator R over denominator 2 end fraction  
  3. r =fraction numerator R over denominator 3 end fraction  
  4. None of these  

The correct answer is: r =fraction numerator R over denominator 2 end fraction

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