Update index.html

Author: Gmac4247

index.html

@@ -2573,7 +2573,7 @@ <h6 style="font-size:160%;margin:7px;">Area of a regular polygon</h6>
 <p style="margin:12px;">The volume of a sphere is defined by comparing it to a cube, since that is the base of volume calculation.
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-Just as the volume of a cube equals the cubic value of the square root of its cross sectional area, also the volume of a sphere equals the cubic value of the square root of its cross sectional area.
+The volume of a sphere equals the cubic value of the square root of its cross sectional area, just like a cube.
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 <math style="margin:12px;" xmlns="http://www.w3.org/1998/Math/MathML" >