question: A safety fence is constructed to protect tourists from the danger of an eroding castle toppling down. At point A, the surveyor takes an angle measurement to the top of the tower of 10°. She then walks 29 meters towards the tower and takes another reading of 22° at point B.
  Hence or otherwise, find the value of h to the nearest metre.
query_wo: Please directly answer the question and provide the final value, e.g., 1, 2.5, 300.
  Question: A safety fence is constructed to protect tourists from the danger of an eroding castle toppling down. At point A, the surveyor takes an angle measurement to the top of the tower of 10°. She then walks 29 meters towards the tower and takes another reading of 22° at point B.
  Hence or otherwise, find the value of h to the nearest metre.
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: A safety fence is constructed to protect tourists from the danger of an eroding castle toppling down. At point A, the surveyor takes an angle measurement to the top of the tower of 10°. She then walks 29 meters towards the tower and takes another reading of 22° at point B.
  Hence or otherwise, find the value of h to the nearest metre.
question_for_eval: A safety fence is constructed to protect tourists from the danger of an eroding castle toppling down. At point A, the surveyor takes an angle measurement to the top of the tower of 10°. She then walks 29 meters towards the tower and takes another reading of 22° at point B.
  Hence or otherwise, find the value of h to the nearest metre.