SOLUTION: find the area of the space enclosed by two concentric circles of radii 15cm & 13cm.

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Question 127222: find the area of the space enclosed by two concentric circles of radii 15cm & 13cm.
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
pi*r^2=A
pi*15^2=225*pi
pi*13^2=169*pi
-------------subtract
=========56*pi cm Ans
.
Ed