Answer: 16π square yards.
Explanation:
The area of a circle is given by the formula:
A = πr^2
where r is the radius of the circle.
In this case, we are given the diameter of the circle, which is 8 yards. The radius is half the diameter, so:
r = d/2 = 8/2 = 4 yards
Substituting this value of r into the formula, we get:
A = π(4)^2 = 16π square yards
Therefore, the area of the circle is 16π square yards.