Update index.html

Author: Gmac4247

index.html

@@ -509,28 +509,32 @@ <h2 style="font-size:100%">By fundamentally shifting the axioms from the abstrac
 <h3 style="margin:7px;">Key Points</h3>
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-<h4 style="margin:7px;">Area of a Circle</h4>
+<a style="margin:7px;" href="#circle">Area of a Circle</a>
+<br>
 <p style="margin:12px;">Compared to a square, using geometric properties and the Pythagorean theorem.
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 Formula:  A = 3.2 × ( square value of the radius )
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-<h4 style="margin:7px;">Circumference of a Circle</h4>
+<a style="margin:7px;" href="#circumference">Circumference of a Circle</a>
+<br>
 <p style="margin:12px;">Derived from the area by subtracting a smaller theoretical circle.
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 Formula:  C = 6.4 × radius
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-<h4 style="margin:7px;">Volume of a Sphere</h4>
+<a style="margin:7px;" href="#sphere">Volume of a Sphere</a>
+<br>
 <p style="margin:12px;">Compared to a cube, using the area of the sphere's cross-section.
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 Formula:  V = cubic value of ( square root ( 3.2 ) × radius ) 
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-<h4 style="margin:7px;">Volume of a Cone</h4>
+<a style="margin:7px;" href="#cone">Volume of a Cone</a>
+<br>
 <p style="margin:12px;">Compared to an octant sphere and a quarter cylinder.
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@@ -3535,6 +3539,7 @@ <h3 style="margin:7px;">Volume of a cone</h3>
 <strong style="margin:12px;">The volume of a cone can be calculated by algebraically comparing the volume of a vertical quadrant of a cone with equal radius and height to an octant sphere with equal radius, through a quarter cylinder.
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 <div class="imgbox">
     <img class="center-fit" src="octantSphereQuarterCone.jpeg" alt="figure-Sphere-and-vertical-frustum-cone">
 </div>