SOLUTION: If the circumference of a circle is 4pie/3, then is half of it's area?

Algebra ->  Circles -> SOLUTION: If the circumference of a circle is 4pie/3, then is half of it's area?      Log On


   

Question 276504: If the circumference of a circle is 4pie/3, then is half of it's area?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
the formula for circumference is
C=+2%2Api%2Ar
given:
2%2Api%2Ar+=+4%2Api%2F3
r+=+2%2F3
A=+pi%2Ar%5E2
A+=+pi%2A%282%2F3%29%5E2
A+=+%284%2F9%29%2Api
%281%2F2%29%2AA+=+%282%2F9%29%2Api