



 
Hi JoAnn. If that 14' is the diameter of your circle, then the radius of the circle is 7'. Since the area of a circle is π r^{2}, the area of your circle is 153.94 square feet. Multiply this by the depth (in feet) of 1/3 feet and you get 51.31 cubic feet of concrete you will need. There are 3^{3} cubic feet in a cubic yard, so divide 51.31 by 3^{3} to get about 1.9 yards of concrete. Stephen La Rocque.>  


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