Answer
$2.53m^{2}$
Work Step by Step
Human body can be considered equivalent to a cylinder (approximately).
So, if we calculate the total surface area of this cylinder we can approximately find out skin area approximately.
Suppose, R=20 cm=0.2m, and H=6 feet=1.82m.
Total surface area = curved surface area + base areas.
$ = 2 \times \frac{22}{7} \times R \times H \,+2 \times\frac{22}{7} \, R^{2} $
$ = 2.28 + 0.25 = 2.53m^{2}.$
