Answer:
A = pi*9 in^2 (which is the first answer choice).
Step-by-step explanation:
The diameter of this cone is 6 inches, so the radius is 3 inches.
The formula for the area of a circle is A = pi*r^2, where r is the radius.
Here, the area of the circular base of the cone is A = pi*(3 in)^2, or
A = pi*9 in^2 (which is the first answer choice).
