question: The area of the sector below is 140.28 (cm)^2. 
  
  Find the length of the radius, $r$. Give your answer correct to one decimal place.
query_wo: Please directly answer the question and provide the final value, e.g., 1, 2.5, 300.
  Question: The area of the sector below is 140.28 (cm)^2. 
  
  Find the length of the radius, $r$. Give your answer correct to one decimal place.
query_cot: Please first conduct reasoning, and then answer the question and provide the final value, e.g., 1, 2.5, 300, at the end.
  Question: The area of the sector below is 140.28 (cm)^2. 
  
  Find the length of the radius, $r$. Give your answer correct to one decimal place.
question_for_eval: The area of the sector below is 140.28 (cm)^2. 
  
  Find the length of the radius, $r$. Give your answer correct to one decimal place.