As per Haase rule, age of the fetus in last 5 months is-: (A) Square root of the length, (B) Length in mm/5, (C) Length in cm/5, (D) Length in mm/7
Answer is C. Ans. is 'c' i.e., Length in cm/5* Rule of Haase : During the first five months of pregnancy the square root of the length gives the approx, age of the fetus in months. During last five months the length in centimeters is divided by five gives the age in months.