Solution:
Given that,
Area of circle = 36 square units
To find: Radius of circle
The area of circle is given as:
[tex]A = \pi r^2[/tex]
Where, r is the radius of circle
From given,
[tex]36 = 3.14 \times r^2\\\\r^2 = \frac{36}{3.14}\\\\r^2 = 11.464\\\\Take\ square\ root\ on\ both\ sides\\\\r = 3.385\\\\r \approx 3.39[/tex]
Thus radius of circle is 3.39 units