the fencing is the perimeter to the tree, then we can use the formula of the perimeter of a circle to replace this value

now we can solve r from the formula to know the radious

we can use 3.14 to pi

the value of the radio is 3 feet
now we can use the formula of the area of the circle to calculate the total area

and replace the known value of the radious and pi

<em>the area is 28.26 square feet</em>
can you provide pictures of the plot?