Answer:
The radius of this sphere is [tex]3[/tex].
Step-by-step explanation:
The volume of a sphere of radius [tex]r[/tex] is:
[tex]\displaystyle V = \frac{4}{3}\, \pi\, r^{3}[/tex].
The surface area of a sphere of radius [tex]r[/tex] is:
[tex]A = \pi\, (2\, r)^{2}[/tex].
Equate the right-hand side of these two expressions and solve for [tex]r[/tex]:
[tex]r = 3[/tex].
In other words, the radius of this sphere is [tex]3[/tex].
