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- May 26th 2010, 01:28 PM #1

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- May 26th 2010, 01:34 PM #2

- May 26th 2010, 01:38 PM #3

- May 26th 2010, 02:46 PM #4

- May 26th 2010, 04:07 PM #5

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Your own subconscious mind was correcting you.

You may luv maths but it's hard if the conscious does all the work.

Basically, the equation of a circle is Pythagoras' theorem applied to

all points on the circumference and the centre.

The distance formula is also Pythagoras' theorem

where are the x and y co-ordinates of the circle centre.