SOLUTION: A target consists of concentric circles of radii 3cm and 9cm? find the area of a,in terms of pi

Algebra ->  Circles -> SOLUTION: A target consists of concentric circles of radii 3cm and 9cm? find the area of a,in terms of pi       Log On


   

Question 1110702: A target consists of concentric circles of radii 3cm and 9cm?
find the area of a,in terms of pi
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A target consists of concentric circles of radii 3cm and 9cm?
find the area of a,in terms of pi
-------------
Where is a?
==============
Area+=+pi%2Ar%5E2