The human eyeball is a sphere with a surface area of 20 square cm. find the approximate radius of the human eyeball.a. 1.26 cmb. 1.59 cmc. 2.24 cmd. 4.47 cm

Surface area of a sphere formula is 4π (radius squared)20 square cm = 4x 3.14 x radius squared
20 square cm=12.56 x radius squared
here we will divide both sides by 12.56 to find radius squared
20/12.56=radius squared
1.5924= radius squared
square root  1.5924=radius
1.26cm=radius of the eye ball
the answer is A. 1.26 cm