Five circles are arranged in the following fashion ( Two rows of 3 circles in square arrangement with one end circle removed from the top row ). Circles are of same diameter and touching adjoining circles as per the diagram. Draw a line passing through A ( Centre of the first circle on the bottom row ) in such a way that it divides the five circles into two equal areas.
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(In reply to
re(2): Equation spoiler by Dej Mar)
Which points? The line
intersects 3 of the circles, each in two points. Discounting the
circle with center A, there are still 4 points where the line
intersects the other two circles, 2 for each circle. And why should
anyone care what any of those points are? Putting A at (0,0) and giving
the circles unit radius, the important point is (3,1).

Posted by Richard
on 20060826 18:08:21 