<span>a.The graph of f(x)= x^2 is widened</span>
To find the diameter of a circle, using only the circumference, you need to divide the circumference by π, or 3.14.
So in this case, you must divide 12 by 3.14, which gives you 3.82.
I even double checked this, and should be correct then.
Answer: The first one is = 27.5
1/3 * 25 * 3.3 = 27.5