The following is not a method of calculating percentage of body fat is:
Body mass index
Body fat is the amount of fat that is stored in the body of a living organism, or a human being. The healthy fat range for men is about 8-19% and anything above this is considered unhealthy.
There are various ways of calculating percentage of body fat which includes:
Underwater weighing
Bioelectrical impedence
Skinfold measures, etc.
Body Mass Index (BMI) is simply a method or way of measuring the body fat in the body of a person and showing the proportionality between the height and weight of the person.
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Density = mass / volume
mass = 44 g
volume = 9 cm³
Density = 44 g / 9 cm³ ≈ 4.9 ≈ 5 g/cm³