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#### Albert

##### Well-known member

- Jan 25, 2013

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- Thread starter Albert
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- #1

- Jan 25, 2013

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- Mar 10, 2012

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HINT:

Rotating the square by 90 degrees in the clockwise direction, the new position of $P$ is collinear with $P$ and $O$.

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- Feb 7, 2012

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Good idea! But what I would do is to rotate the square by 90 degrees in an

Rotating the square by 90 degrees in the clockwise direction, the new position of $P$ is collinear with $P$ and $O$.

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