+0  
 
0
349
1
avatar+160 

A circle with center $A$ and radius three inches is tangent at $C$ to a circle with center $B$, as shown. If point $B$ is on the small circle, what is the area of the shaded region? Express your answer in terms of $\pi$.

AdminMod2  Aug 20, 2017
 #1
avatar+314 
+1

The radius of the bigger circle is the diameter of the smaller circle. The area of the bigger circle is (2*3)^2*pi or 36pi. The small circle is 3^2*pi or 9pi. The area of the shaded region is 36pi - 9pi=27pi

ISmellGood  Aug 20, 2017

18 Online Users

avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.