How to Prove that a Point Lies on a Circle (or Inside/Outside)

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In this video I will teach you how you can show that a point lies on a circle. I will also teach you how you can show that a point is outside or inside a circle with a more comprehensive method. To do this you will need to use the distance formula (basically Pythagoras) and be able to find the centre and radius from the circle equation.
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Or... square root the distance and r^2

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