Answer:
22 pi ft
Step-by-step explanation:
We can use the area to find the radius
A = pi r^2
121 pi = pi r^2
Divide each side by pi
121 = r^2
Take the square root
sqrt(121) = sqrt(r^2)
11= r
Now we need to find the circumference
C = 2*pi*r
C = 2* pi *11
C = 22 pi ft
The answer is 36 all you do is divide the answer choices by 3 to get your answer
A way you can set this up is like this.
1 / 2.75 = x / 3.66667
Solve for x by cross multiplying
x = 1.333
or
1 and 1/3 cups
X equals five plus or minus the square root of negative five squared minus four times two times eighteen, all divided by two times two
