Solution:
It is given a sphere with surface area = .Let radius of sphere be cm.
Surface area of sphere
= 17.6560=
Diameter = 2r
Diameter = 8.4cm
Hence, the value of diameter is 8.4cm.
Therefore, option 1 is correct.
If a ball in the shape of a sphere has a surface area of then, which of the following is the value of its diameter?