Question 308042
Surface Area of a Sphere = {{{4*pi*r^2=3364*pi}}}

Divide both sides by {{{4*pi}}}:
{{{r^2=841}}}


Square root both sides:
{{{r=sqrt(841)}}}
{{{r=29}}}


Diameter = 2*r = 58 units.


Dr. Robert J. Rapalje, Retired