{"id":732,"date":"2023-09-19T07:15:02","date_gmt":"2023-09-19T07:15:02","guid":{"rendered":"https:\/\/bbgpdiy.kemdikbud.go.id\/labs\/?p=732"},"modified":"2025-10-02T01:33:22","modified_gmt":"2025-10-02T01:33:22","slug":"pencarian-nilai-pi-pendekatan-poligon","status":"publish","type":"post","link":"https:\/\/bbgtkdiy.kemendikdasmen.go.id\/labvirtual\/2023\/09\/19\/pencarian-nilai-pi-pendekatan-poligon\/","title":{"rendered":"Pencarian Nilai Pi (Pendekatan Poligon)"},"content":{"rendered":"\n<p>Mencari nilai bilangan Pi (\u03c0) dengan pendekatan poligon<\/p>\n\n\n\n<!-- Wrapper utama agar iframe selalu di tengah dan responsif -->\n<div style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; margin: 0 auto; display: block; border: 1px solid #888888; border-radius: 8px;\">\n\n  <!-- Iframe GeoGebra -->\n  <iframe \n    src=\"https:\/\/www.geogebra.org\/material\/iframe\/id\/hdu8ww9y\/width\/1020\/height\/583\/border\/888888\/sfsb\/true\/smb\/false\/stb\/false\/stbh\/false\/ai\/false\/asb\/false\/sri\/true\/rc\/false\/ld\/false\/sdz\/false\/ctl\/false\"\n    style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none; border-radius: 8px;\"\n    allowfullscreen\n    loading=\"lazy\">\n  <\/iframe>\n\n<\/div>\n\n\n\n\n<p>Pi&nbsp;(\u03c0) merupakan merupakan perbandingan antara keliling sebuah lingkaran dengan jari-jarinya. Karena <img decoding=\"async\" width=\"9\" height=\"19\" src=\"\">\u03c0&nbsp;bilangan irasional, maka menjadi tantangan tersendiri untuk menemukan nilainya seakurat mungkin.&nbsp; Applet ini merupakan napak tilas bagaimana matematikawan terdahulu mencari nilai pi.&nbsp; Salah satu yang paling sederhana adalah menggunakan pendekatan luas poligon.&nbsp; Lingkaran berjari-jari 1 (sehingga luasnya \u03c0&nbsp;dijepit oleh poligon luar dan dalam.&nbsp; Maka nilai \u03c0 terletak di antara luas poligon dalam dan luar.<\/p>\n\n\n\n<p>Sumber: Untung Trisna Suwaji<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"710\" height=\"340\" src=\"https:\/\/bbgtkdiy.kemendikdasmen.go.id\/labvirtual\/wp-content\/uploads\/sites\/6\/2023\/09\/image-1.png\" alt=\"\" class=\"wp-image-735\" srcset=\"https:\/\/bbgtkdiy.kemendikdasmen.go.id\/labvirtual\/wp-content\/uploads\/sites\/6\/2023\/09\/image-1.png 710w, https:\/\/bbgtkdiy.kemendikdasmen.go.id\/labvirtual\/wp-content\/uploads\/sites\/6\/2023\/09\/image-1-300x144.png 300w\" sizes=\"(max-width: 710px) 100vw, 710px\" \/><\/figure>\n\n\n\n<script src=\"https:\/\/code.responsivevoice.org\/responsivevoice.js?key=xIDG6JzF\"><\/script>\n<script>\n  \/\/ Fungsi untuk membaca teks yang dipilih\n  function bacaTeksTerpilih() {\n    const selectedText = window.getSelection().toString().trim();\n    if (selectedText.length > 0) {\n      responsiveVoice.cancel();\n      responsiveVoice.speak(selectedText, \"Indonesian Female\");\n    }\n  }\n\n  \/\/ Aktif saat mouse selesai blok teks\n  document.addEventListener(\"mouseup\", function () {\n    setTimeout(bacaTeksTerpilih, 100);\n  });\n\n  \/\/ Aktif saat double click pada kata\n  document.addEventListener(\"dblclick\", function () {\n    setTimeout(bacaTeksTerpilih, 100);\n  });\n\n  \/\/ Aktif saat mouse hover ke elemen teks (judul, paragraf, dll)\n  document.querySelectorAll(\"p, span, li, a, h1, h2, h3, h4, h5, h6\").forEach(function(el) {\n    el.addEventListener(\"mouseenter\", function () {\n      const text = el.innerText.trim();\n      if (text.length > 0) {\n        responsiveVoice.cancel();\n        responsiveVoice.speak(text, \"Indonesian Female\");\n      }\n    });\n  });\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Mencari nilai bilangan Pi (\u03c0) dengan pendekatan poligon Pi&nbsp;(\u03c0) merupakan merupakan perbandingan antara keliling sebuah lingkaran dengan jari-jarinya. Karena \u03c0&nbsp;bilangan irasional, maka menjadi tantangan tersendiri untuk menemukan nilainya seakurat mungkin.&nbsp; Applet ini merupakan napak tilas bagaimana matematikawan terdahulu mencari nilai pi.&nbsp; Salah satu yang paling sederhana adalah menggunakan pendekatan luas poligon.&nbsp; Lingkaran berjari-jari 1 (sehingga [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":735,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,3],"tags":[4,7,8],"class_list":["post-732","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-alat-peraga","category-matematika","tag-matematika","tag-matematika-smp","tag-smp"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/bbgtkdiy.kemendikdasmen.go.id\/labvirtual\/wp-json\/wp\/v2\/posts\/732","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bbgtkdiy.kemendikdasmen.go.id\/labvirtual\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bbgtkdiy.kemendikdasmen.go.id\/labvirtual\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bbgtkdiy.kemendikdasmen.go.id\/labvirtual\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bbgtkdiy.kemendikdasmen.go.id\/labvirtual\/wp-json\/wp\/v2\/comments?post=732"}],"version-history":[{"count":5,"href":"https:\/\/bbgtkdiy.kemendikdasmen.go.id\/labvirtual\/wp-json\/wp\/v2\/posts\/732\/revisions"}],"predecessor-version":[{"id":1533,"href":"https:\/\/bbgtkdiy.kemendikdasmen.go.id\/labvirtual\/wp-json\/wp\/v2\/posts\/732\/revisions\/1533"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bbgtkdiy.kemendikdasmen.go.id\/labvirtual\/wp-json\/wp\/v2\/media\/735"}],"wp:attachment":[{"href":"https:\/\/bbgtkdiy.kemendikdasmen.go.id\/labvirtual\/wp-json\/wp\/v2\/media?parent=732"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bbgtkdiy.kemendikdasmen.go.id\/labvirtual\/wp-json\/wp\/v2\/categories?post=732"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bbgtkdiy.kemendikdasmen.go.id\/labvirtual\/wp-json\/wp\/v2\/tags?post=732"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}