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April 2, 2015

April 2, 2015

Posted by **Knights** on Tuesday, January 15, 2013 at 6:01pm.

It can be solved using geometry methods (no trig). Anyway, I figured out that PA^2 +PB^2 = 2OP^2 + 2OB^2. However, I cannot find right triangles to help to find PC^2+PD^2. Oh, and I got a hint: "The problem involves sums of squares of lengths. What should you be looking for (or building) in the problem?"

Thanks in advance

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