SOLUTION: What's the circumference of a circle who's area is 2.16 sq. meters?

Algebra ->  Algebra  -> Circles -> SOLUTION: What's the circumference of a circle who's area is 2.16 sq. meters?      Log On

Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

   

Question 207620: What's the circumference of a circle who's area is 2.16 sq. meters?
Answer by ANiess(3) About Me  (Show Source):
You can put this solution on YOUR website!
Area= +pi%2Ar%5E2+
Area= 2.16 sq. meters
---
+2.16=pi%2Ar%5E2+
---
+2.16%2Fpi=r%5E2+
---
+sqrt%282.16%2Fpi%29=r+
---
+0.829=r+
---
Circumference= +2%2Api%2Ar+
---
+C=%282%29%28pi%29%28.829%29+
---
+C=5.209+
---
Note: the values of r and C are approximate answers, so do not use an "=", but "≈"