<prompt> Rule of Hasse is used to determine?The age of fetusHeight of an adultRace of a personIdentification  <response>: A The age of fetus HASSES RULE is employed to calculate the age of the foetus on the basis of the length according to months of gestation and calculating the age of fetus from its length. During the first five months of pregnancy, the length in cms is square of the age in months i.e. Rule of Hasse. 