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April 1, 2015

Homework Help: I am really struggling on this problem - geometry

Posted by Knights on Wednesday, December 5, 2012 at 7:25am.

Please help guys if you can, this is a really hard problem I am trying to solve

Four circles of unit radius are drawn with centers (1,0),(0,1) ,(-1,0) ,(0,-1) and . A circle with radius 2 is drawn with the origin as its center. What is the area of all points which are contained in an odd number of these 5 circles? (Express your answer in the form "a pi + b" or "a pi - b", where a and b are integers.)

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