3/5 of 1/6 is written as
3/5 x 1/6
Multiply both the numerator and denominators together:
3x1 / 5*6 = 3/30, reduces to 1/10.
The answer is 1/10.
The length of the fencing corresponds to the length of the perimeter of the garden:

We also know that the perimeter of a circle is given by:

where r is the radius of the circle.
Putting together the two equations, we have

from which we can find r, the radius of the garden:
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