Update about.html

Author: Gmac4247

about.html

@@ -191,12 +191,13 @@
 "administrativeArea",
 "name" :"Szentendre, Hungary"},
 "mainEntity" : 
-"@type": ["MathSolver", "LearningResource"],
+{"@type": ["MathSolver", "LearningResource"],
  "name" : "Exact Geometry",
  "inLanguage":"en-us",
 "url": "https://basic-geometry.github.io/", 
 "usageInfo":"Learn about historical and exact geometric concepts.",
  "potentialAction": [
+{
      "@type": "SolveMathAction",
      "target": "/",
      "mathExpression-input": "required name=radius default=1 name=angleOfRotation default=360",
@@ -763,6 +764,9 @@ <h2 style="font-size:160%;margin:7px;">The area of a circle is defined by compar
 <div>
 <h3 style="font-size:160%;margin:7px;">The circumference of a circle is derived algebraically from its area by subtracting a theoretical circle with a ray shorter than the ray of the actual circle by the theoretical width of the circumference.</h3>
 <br>
+<div class="imgbox">
+    <img class="center-fit" src="circumference.jpg" alt="Circle" id="circumference">
+</div>
 <br>
 The x represents the width of the circumference, which is just theoretical, hence a very small number.
 <br>