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How can you prove that a circle with infinite radius is a Straight line?
ManishMenon
I don't know about proving it arithmetically, but graphically you can prove it really easily.
Draw a circle, and just focus on one portion of the circle's curve. Keep making its radius bigger, looking at the same section of the circle. You'll see the curve gets wider and wider. If you kept going, the curve would get so wide it would start getting closer to a line shape. So in theory, if you made the radius infinite, it would reach the point where the curve becomes so wide it's just a straight line.
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∙ 10y ago
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How do you prove that a circle is made up of straight lines?
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