. A rotating lawn sprinkler sprays water in a circular area of grass, as shown in the picture. The diameter of the circular area of grass is 16ft.

Select the correct formula you would utilize to solve for area of the sprinkled circular area of grass.
Identify the important information to solve the problem.
Substitute correct values for variables.
Explain in detail the steps to solve for area.
State the final answer with the correct units of measurement.
HELP ME!