Answer:
Step-by-step explanation:
The equation to use to find the radius of a circle is
The equation to use to find the area of a circle is
First, add inches to the diameter of inches. You will get inches.
Second, you will want to find the radius. Substitute for . Solve to get the radius.
The radius is inches.
Next, you substitute for in the area equation. Solve to get the area.
1, 2, 4, 5, 8, 10, 20, 40
These number can all divide 40
about0.9165
the answer is 9
Hello the answer to your question is 0.4 sec.
Hope this helps