SOLUTION: can you please help me solve ((( The are of a circle is 16pie. What is its circumference? )))

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Question 199049This question is from textbook geometry
: can you please help me solve ((( The are of a circle is 16pie. What is its circumference? ))) This question is from textbook geometry

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
The area of a circle is 16pie. What is its circumference?
:
Use the area of a circle formula to find the radius (r):
pi%2Ar%5E2 = A
pi%2Ar%5E2 = 16pi
divide both sides by pi
r%5E2 = 16
Find the square root of both sides
r = sqrt%2816%29
r = 4
:
The circumference formula:
C+=+2%2Api%2Ar
C+=+2%2Api%2A4
c = 25.1327