<prompt> Hasse rule is related toKerala 2007repeatAge of fetusWeight of fetusHeight of fetusSeverity of burns  <response>: Ans a Age of fetus Ref: Reddy 27th ed p68Rule of Hasse-It is used for calculating the age of the foetus. In the first five months of pregnancy the square root of crown rump length gives the approximate age of foetus in months.In the last five months the length in centimeters divided by 5 gives the age in months. 