Maths-
General
Easy

Question

In a model, it is shown that an arch of abridge is semi-elliptical with major axis horizontal. If the length of the base is 9 m and the highest part of the bridge is 3 m from the horizontal, the best approximation of the height of the arch, 2 m from the centre of the base is

  1. fraction numerator 11 over denominator 4 end fraction text end text m  
  2. fraction numerator 8 over denominator 3 end fraction text end text m  
  3. fraction numerator 7 over denominator 2 end fraction text end text m  
  4. 2 m  

The correct answer is: fraction numerator 8 over denominator 3 end fraction text end text m

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