Add files via upload

Author: Gmac4247

about.html

@@ -11,10 +11,8 @@
 <link rel="icon" type="image/x-icon" href="favicon.ico">
 <link rel="mask-icon" href="safari-pinned-tab.svg" color="#000000">
 <link href="https://fonts.googleapis.com/css2?family=OpenDyslexic&display=swap" rel="stylesheet">
-<link rel="canonical" href="https://basic-geometry.pages.dev/about">
-<meta name="robots" content="noindex">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
-<meta name="description" content="The story behind the best-established and most accurate framework to calculate area and volume">
+<meta name="description" content="The backstory about the best-established and most accurate framework to calculate area and volume, the Core Geometric System ™">
 <meta name="author" content="Gaál Sándor">
 <meta name="keywords" content="Core Geometric System, Accurate Geometric Calculations, Engineering Design Solutions, Computer Graphics Rendering, Algorithm Optimization, Navigation">
 <meta name="twitter:card" content="summary_large_image">
@@ -24,6 +22,8 @@
 <meta name="twitter:image" content="android-chrome-256x256.png">
 <meta name="msapplication-TileColor" content="#000000">
 <meta name="theme-color" content="#000000">
+<meta name="google-site-verification" content="XuP08h4O_UbzZo81VWNHhFn5OW7elz2_cZi17lt3qvA">
+<meta name="msvalidate.01" content="EA6B8354B9F3C956E862954E97EB8CD0">
 <style>
 
         * {
@@ -88,14 +88,14 @@
 {
   "@context": "https://schema.org",
     "@type": "Article",
-	"@id": "https://basic-geometry.github.io#cgs",
-	"name": "Core Geometric System ™",
+	"@id": "https://basic-geometry.pages.dev#cgs",
+	"name": "About the Core Geometric System ™",
 	"about":  {
     "@type": "DefinedTermSet",
     "name": "Core Geometric System ™",
 	"description": "Universally applicable self-consistent geometric framework of physically grounded exact area and volume calculation formulas for regular shapes.",
 	"disambiguatingDescription": "Not the conventional, abstract approximates.",
-	"url": "https://basic-geometry.github.io"
+	"url": "https://basic-geometry.pages.dev"
 	},
 	"author": {
     "@type": "Person",
@@ -139,7 +139,7 @@
 	"backstory": "How it started",
 	"copyrightNotice": "® All rights reserved",
 	"copyrightYear": "2026",
-	"description": "The story behind the best-established and most accurate framework to calculate area and volume",
+	"description": "The backstory about the best-established and most accurate framework to calculate area and volume, the Core Geometric System ™",
 	"headline": "Once around 2018 I was wondering how to calculate the area of a circle.",
 	"inLanguage": "en",
     "isAccessibleForFree": true,
@@ -357,7 +357,7 @@ <h2>While trying to explain it to others, I have found that different people hav
 </main>
 <br><br><br><br>
 <footer>
-<a style="margin:9px" href="https://basic-geometry.github.io">Home</a>
+<a style="margin:9px" href="https://basic-geometry.pages.dev">Home</a>
 <br>
 <br>
   <a style="margin:9px" href="privacy-policy">Do Not Sell My Personal Information</a>

cone.jpeg

@@ -7,8 +7,6 @@ self.addEventListener('install', (event) => {
         'circle.png',
         'circumference.png',
         'sphere.jpeg',
-        'coneAndSphere.jpeg',
-        'octantSphereQuarterCone.jpeg',
         'sphereAndCone.jpeg',
         'trigonometry.png',
         'sphereSurface.jpeg',