Update index.html

Author: Gmac4247

index.html

@@ -2534,7 +2534,7 @@ <h4>Archimedes and the Illusion of Limits</h4>
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 He started with the hexagon (30° half-angle), where the sine is exactly 0.5 because it's half of an equilateral triangle side. That is a solid reference point. But every step after that — 15°, 7.5°, 3.75° — relies on the Half-Angle Formula.
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-If the angle bisection formula is even slightly inaccurate for non-standard angles, then by the time Archimedes reached the 96-gon, that error would have compounded.
+If the angle bisection formula is even slightly inaccurate for non-standard angles, then by the time Archimedes reached the 96-gon, that error would have compounded.</p>
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