SOLUTION: I am a beginner. I am stuck on correct answer: What is the circumference of a circle with area 16rr I am not using a specific book. I am just practicing.......

Algebra ->  Expressions-with-variables -> SOLUTION: I am a beginner. I am stuck on correct answer: What is the circumference of a circle with area 16rr I am not using a specific book. I am just practicing.......      Log On


   

Question 39501: I am a beginner.
I am stuck on correct answer:
What is the circumference of a circle with area 16rr

I am not using a specific book. I am just practicing.......
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
I don't know what rr is on the 16, but I will solve.
A+=+%28pi%29r%5E2
16+=+%28pi%29r%5E2
sqrt%2816%2F%28pi%29%29+=+r
So ....
C+=+2%28pi%29r
C+=+2%28pi%29%28sqrt%2816%2F%28pi%29%29%29
The circumference is about 14.1796 units long.