SOLUTION: both circles have the same center and the radius of the larger circle is R. if the radius of the smaller circle is 3 units less than R, which of the following represents the area o

Algebra ->  Expressions -> SOLUTION: both circles have the same center and the radius of the larger circle is R. if the radius of the smaller circle is 3 units less than R, which of the following represents the area o      Log On


   

Question 932075: both circles have the same center and the radius of the larger circle is R. if the radius of the smaller circle is 3 units less than R, which of the following represents the area of the shaded region?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
I'm assuming the shaded region is the area between the circles.
A=pi%2AR%5E2-pi%2A%28R-3%29%5E2
A=pi%2AR%5E2-pi%28R%5E2-6R%2B9%29
A=6pi%2AR-9pi
A=3pi%282R-3%29