Question 855202
The surface area of a sphere is given by

{{{S = 4 pi r^2}}}

{{{200= 4 pi r^2}}}

{{{200 = 4*3.14*r^2}}}


{{{r^2= 200/(4* 3.14)}}}

r^2=15.92

r = +/- 3.99 = +/-4

So radius = 4