question: The following is a right pyramid on a square base with side length 16cm. A right pyramid has its apex aligned directly above the centre of its base.
  
  Find the length of VW, the perpendicular height of the pyramid correct to two decimal places.
query_wo: Please directly answer the question and provide the final value, e.g., 1, 2.5, 300.
  Question: The following is a right pyramid on a square base with side length 16cm. A right pyramid has its apex aligned directly above the centre of its base.
  
  Find the length of VW, the perpendicular height of the pyramid correct to two decimal places.
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 following is a right pyramid on a square base with side length 16cm. A right pyramid has its apex aligned directly above the centre of its base.
  
  Find the length of VW, the perpendicular height of the pyramid correct to two decimal places.
question_for_eval: The following is a right pyramid on a square base with side length 16cm. A right pyramid has its apex aligned directly above the centre of its base.
  
  Find the length of VW, the perpendicular height of the pyramid correct to two decimal places.