The circumference of a circle is found by 2πr or dπ. In this case, diameter is asked. So we can use the second formula.
[tex]c = d\pi [/tex]
Plug in the values:
[tex]75.36 = d \times 3.14 [/tex]
Divide both sides by 3.14:
[tex]d = 24[/tex]
So, the diameter is 24 yards.