Answer:3.277 units
Step-by-step explanation:
Given
The surface area of a sphere is [tex]135\ sq.units[/tex]
The surface area of a sphere is given by
[tex]\Rightarrow S.A.=4\pi r^2[/tex]
Putting values
[tex]\Rightarrow 135=4\times \frac{22}{7}\times r^2\\\\\Rightarrow r^2=\dfrac{135\times 7}{22\times 4}\\\\\Rightarrow r^2=10.738\\\Rightarrow r=\sqrt{10.378}=3.277\ units[/tex]