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Question

In the adjacent figure, if the perimeter of the Sector is 50 cm and the area is ‘A’ cm2,then angle at the centre of the Sector (q )

  1. fraction numerator 360 over denominator pi end fraction open parentheses fraction numerator 25 over denominator r end fraction minus 1 close parentheses    
  2. fraction numerator 180 over denominator pi end fraction open parentheses fraction numerator 25 over denominator r end fraction minus 1 close parentheses    
  3. fraction numerator 360 over denominator pi end fraction open parentheses fraction numerator 50 over denominator r end fraction minus 1 close parentheses    
  4. none of these    

The correct answer is: fraction numerator 360 over denominator pi end fraction open parentheses fraction numerator 25 over denominator r end fraction minus 1 close parentheses

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