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Easy

Question

The area of a triangle is measured in terms of b, c, A If A = 63º and there is an error of 15 in A, the percentage error in the area is

  1. fraction numerator 5 pi over denominator 36 end fractioncot 63º    
  2. fraction numerator pi over denominator 36 end fractioncot 63º    
  3. fraction numerator 2 pi over denominator 36 end fractioncot63º    
  4. fraction numerator 4 pi over denominator 36 end fractioncot 63º    

The correct answer is: fraction numerator 4 pi over denominator 36 end fractioncot 63º

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