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The Douglas Triangle, Khufu and Khafre

Douglas, Ian

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  "description": "<p>&nbsp;</p>\n\n<p class=\"western\"><em>The Douglas triangle is a special right triangle using &phi; and &radic;3. It appears that its proportions and peculiarities impressed the Giza planners so much that they used it, when scaled by 50&pi;, for the base lengths of the Khufu and Khafre pyramids. This paper presents the triangle and discusses some of its interesting features.</em></p>\n\n<p>\np { margin-bottom: 0.25cm; line-height: 115%; orphans: 0; widows: 0; background: transparent; page-break-before: auto }p.western { font-family: \"Libertinus Math\"; font-size: 12pt; font-weight: normal }a:visited { color: #800000; so-language: zxx; text-decoration: underline }a:link { color: #000080; so-language: zxx; text-decoration: underline }\n\n</p>", 
  "license": "", 
  "creator": [
      "@type": "Person", 
      "name": "Douglas, Ian"
  "headline": "The Douglas Triangle, Khufu and Khafre", 
  "image": "", 
  "datePublished": "2021-12-30", 
  "url": "", 
  "version": "1.0.0", 
  "keywords": [
    "golden ratio", 
    "history of mathematics"
  "@context": "", 
  "identifier": "", 
  "@id": "", 
  "@type": "ScholarlyArticle", 
  "name": "The Douglas Triangle, Khufu and Khafre"
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