![\"\"](\"https:\/\/www.kurashiki-cu.ac.jp\/it\/wp-content\/uploads\/2023\/07\/\u6247\u5f62\u306e\u9762\u7a4d01.png\")
<\/figure>\n\n\n\n![\"\"](\"https:\/\/www.kurashiki-cu.ac.jp\/it\/wp-content\/uploads\/2023\/07\/\u6247\u5f62\u306e\u9762\u7a4d\u304b\u3089\u5186\u306e\u9762\u7a4d\u3092\u6c42\u3081\u308b.png\")
<\/figure>\n\n\n\n![\"\"](\"https:\/\/www.kurashiki-cu.ac.jp\/it\/wp-content\/uploads\/2023\/07\/\u6247\u5f62\u306e\u9762\u7a4d\u304b\u3089\u5186\u306e\u9762\u7a4d\u3092\u6c42\u3081\u308b02.png\")
<\/figure>\n\n\n\n\u6247\u5f62\u306e\u9762\u7a4d<\/h4>\n\n\n
\n\u534a\u5f84 \\(R\\) \u3001\u5f27\u306e\u9577\u3055\u304c \\(l\\) \u306e\u6247\u5f62\u306e\u9762\u7a4d \\(S\\) \u306f\\(S=\\frac{1}{2}Rl\\)<\/p>\n\n\n\n
\u30fb\u6247\u5f62\u3092\u5c0f\u3055\u306a\u6247\u5f62\u306b\u5206\u5272\u3059\u308b\u3002\uff08\u9762\u7a4d\u3092\u8003\u3048\u308b\u57fa\u672c\u6226\u7565\uff09
\u30fb\u5c0f\u3055\u306a\u6247\u5f62\u306f\u5c0f\u3055\u306a\u4e09\u89d2\u5f62\u3067\u8fd1\u4f3c\u3067\u304d\u308b\u3068\u8003\u3048\u308b\u3002\uff08\u672c\u5f53\u304b\uff1f\uff09
\u30fb\u5c0f\u3055\u306a\u6247\u5f62\u3092\u5c0f\u3055\u306a\u4e09\u89d2\u5f62\u3067\u8fd1\u4f3c\u3059\u308b\u3068\u304d\u3001\u6247\u5f62\u306f\u5186\u306e\u4e00\u90e8\u3067\u3042\u308b\u3053\u3068\u306b\u6ce8\u76ee\u3057\u3066\u307f\u308b\u3002
\u30fb\u5186\u4e0a\u306e\u3042\u308b\u70b9\u306b\u304a\u3051\u308b\u63a5\u7dda\u306f\u76f4\u7dda\u3067\u3042\u308b\u3053\u3068\u3092\u8a8d\u3081\u308b\u3002\u3059\u308b\u3068\u3053\u306e\u63a5\u7dda\u3092\u4f7f\u3063\u3066\u3001\u5c0f\u3055\u306a\u6247\u5f62\u3092\u5c0f\u3055\u306a\u4e09\u89d2\u5f62\u3067\u8fd1\u4f3c\u3059\u308b\u3053\u3068\u306b\u3059\u308b\u3002\u203b\u5c0f\u3055\u306a\u4e09\u89d2\u5f62\u3092\u4f5c\u308b\u306b\u306f\u3001\u5c0f\u3055\u306a\u6247\u5f62\u306e\u534a\u5f84\u3092\u5e95\u8fba\u3068\u3057\u3066\u3001\u63a5\u7dda\u3092\u9ad8\u3055\u3068\u3059\u308b\u4e09\u89d2\u5f62\u3092\u8003\u3048\u308b\u3002
\u30fb\u5c0f\u3055\u306a\u4e09\u89d2\u5f62\u306e\u9762\u7a4d\u306f\uff08\u5e95\u8fba\uff09\u00d7\uff08\u5c0f\u3055\u306a\u9ad8\u3055\uff09\u00f7\uff12\u3067\u8a08\u7b97\u3067\u304d\u308b\u3002
\u30fb\u3053\u306e\u5c0f\u3055\u306a\u4e09\u89d2\u5f62\u3092\u96c6\u3081\u308b\u3068\u3001\u5e95\u8fba\u306f\u540c\u3058\u3060\u304b\u3089\u3001(\u5c0f\u3055\u306a\u9ad8\u3055\uff09\u3092\u96c6\u3081\u308b\u3068\u4e01\u5ea6\u5186\u5468\u306e\u306a\u308a\u305d\u3046\u306a\u611f\u3058\u304c\u3059\u308b\u3002
\u30fb\u5186\u5468\u306e\u4e00\u90e8\u3092\u63a5\u7dda\u3067\u8fd1\u4f3c\u3059\u308b\u3068\u3044\u3046\u3053\u3068\u306a\u305c\u8a31\u3055\u308c\u308b\u304b\uff1f\u3053\u306e\u4e00\u90e8\u3092\u3069\u3093\u3069\u3093\u30ba\u30fc\u30e0\u30a4\u30f3\u3057\u3066\u3044\u304f\u3068\u3001\u5186\u306e\u4e00\u90e8\u3067\u3042\u308b\u66f2\u7dda\u304c\u9650\u308a\u306a\u304f\u76f4\u7dda\u3068\u4e00\u81f4\u3059\u308b\u3053\u3068\u304c\u60f3\u50cf\u3067\u304d\u308b\u3002\uff08\u203b\u30d1\u30bd\u30b3\u30f3\u3067\u78ba\u304b\u3081\u308b\u3053\u3068\u3082\u3067\u304d\u308b\uff09
\u30fb\u304d\u3056\u304d\u3056\u3084\u3068\u304c\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3060\u3081\u3060\u304c\u3001\u306a\u3081\u3089\u304b\u306a\u66f2\u7dda\u3067\u3042\u308c\u3070\u3001\u305d\u306e\u4e00\u70b9\u306b\u3080\u304b\u3063\u3066\u3001\u9650\u308a\u306a\u304f\u30ba\u30fc\u30e0\u30a4\u30f3\u3059\u308b\u3068\u5fc5\u305a\u76f4\u7dda\u3067\u8fd1\u4f3c\u3067\u304d\u308b\u3002
\u30fb\u6570\u5b66\u3067\u306f\u3053\u306e\u3053\u3068\u3092\u66f2\u7dda\u306f\u66f2\u7dda\u4e0a\u306e\u3042\u308b\u70b9\u3067\u5fae\u5206\u53ef\u80fd\u3068\u3044\u3044\u3001\u3069\u3093\u306a\u66f2\u7dda\u3082\u7b2c\u4e00\u8fd1\u4f3c\u3068\u3057\u3066\u3001\u76f4\u7dda\uff08\uff11\u6b21\u5fae\u5206\uff09\u3067\u8fd1\u4f3c\u3067\u304d\u308b\u3068\u3044\u3046\u3002
\u30fb\u30ba\u30fc\u30e0\u30a4\u30f3\u306e\u6709\u9650\u306e\u89e3\u50cf\u5ea6\u3067\u3042\u308b\u9650\u308a\u3001\u76f4\u7dda\u304b\u3089\u308f\u305a\u304b\u306b\u305a\u308c\u308b\u304c\u30012\u6b21\u5fae\u5206\u30013\u6b21\u5fae\u5206\u3001\u3068\u7121\u9650\u306b\u3064\u306a\u3052\u308c\u3070\u5b8c\u5168\u306b\u4e00\u81f4\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n\n\n
\n\u5c0f\u3055\u306a\u6247\u5f62\u306f\u534a\u5f84\u304c\\(R\\)\u3001\u9ad8\u3055\u304c\\(dl\\)\u306e\u76f4\u89d2\u4e09\u89d2\u5f62\u3067\u8fd1\u4f3c\u3067\u304d\u308b\u3068\u8003\u3048\u308b\u3068\u3001\u305d\u306e\u9762\u7a4d\u306f\u3001
\n\\(
\ndS=\\frac{1}{2} \\times R\\times dl
\n\\)
\n\u3082\u3068\u3082\u3068\u8003\u3048\u3066\u3044\u305f\u6247\u5f62\u3092\u540c\u3058\u5927\u304d\u3055\u306e\u5c0f\u3055\u306a\u6247\u5f62\u306b\u5206\u5272\u3057\u3001\u305d\u306e\u5c0f\u3055\u306a\u6247\u5f62\u306e\u9762\u7a4d\u304c\u4e0a\u306e\u5f0f\u3067\u5f97\u3089\u308c\u305f\u3068\u3059\u308b\u3068\u3001\u305d\u306e\u5c0f\u3055\u306a\u6247\u5f62\u3092\u518d\u3073\u3059\u3079\u3066\u96c6\u3081\u3066\u5143\u306e\u6247\u5f62\u306e\u9762\u7a4d\u3068\u3059\u308c\u3070\u3088\u3044\u3068\u8003\u3048\u308b\u3002\u307e\u305a\u3001\u6709\u9650\u306e\u6570\\(N\\)\u306e\u540c\u3058\u5927\u304d\u306a\u6247\u5f62\u306b\u5206\u5272\u3057\u3001\u305d\u306e\u5c0f\u3055\u306a\u6247\u5f62\u306e\u9762\u7a4d\u3092\\(N\\)\u500d\u3059\u308c\u3070\u3088\u3044\u3002\\(N\\)\u500d\u3055\u308c\u308b\u306e\u306f\u5c0f\u3055\u306a\u6247\u5f62\u306e\u5c0f\u3055\u306a\u5f27\u306e\u9577\u3055\u3060\u304b\u3089\u3001\u3053\u308c\u3089\u3092\u96c6\u3081\u308b\u3068\\(l\\)\u306b\u306a\u308b\u3002\u5186\u5468\u4e0a\u306b\u56de\u308b\u306e\u3067\u3001\u5927\u4e08\u592b\u304b\u3068\u601d\u3046\u304c\u3001\\(N\\)\u3092\u7121\u9650\u306b\u5927\u304d\u304f\u3068\u308b\u3068\u3001\u5c0f\u3055\u306a\u5f27\u306e\u9577\u3055\u306f\u6b63\u78ba\u306b\u63a5\u7dda\u306e\u9577\u3055\u3068\u4e00\u81f4\u3059\u308b\u3002\u3064\u307e\u308a\u3001\u70b9A\u306b\u304a\u3051\u3066\u5186\u304c\u63cf\u304f\u66f2\u7dda\u306f\u3001\u63a5\u7dda\u3068\u3044\u3046\u76f4\u7dda\u306b\u8fd1\u4f3c\u3067\u304d\u3066\u3001\\(N\\rightarrow \\infty\\)\u3067\u306f\u5b8c\u5168\u306b\u4e00\u81f4\u3059\u308b\u3002
\n\\(
\nS=\\Sigma dS=\\Sigma \\frac{1}{2} \\times R\\times dl =\\frac{1}{2} \\times R\\times \\Sigma dl =\\frac{1}{2} \\times R\\times l =\\frac{1}{2} R l
\n\\)
\n\\(
\nS=\\int_0^S dS= \\int_0^S \\frac{1}{2} \\times R\\times dl =\\frac{1}{2} \\times R\\times \\int_0^l dl =\\frac{1}{2} \\times R\\times l=\\frac{1}{2} R l
\n\\)<\/p>\n\n\n\n
\u5186\u306e\u9762\u7a4d<\/h4>\n\n\n
\n\u30fb\u5186\u3092\u5c0f\u3055\u306a\u6247\u5f62\u306b\u5206\u5272\u3059\u308b\u3002
\n\u30fb\u534a\u5f84 \\(R\\) \u3001\u5f27\u306e\u9577\u3055\u304c \\(l\\) \u306e\u5c0f\u3055\u306a\u6247\u5f62\u306e\u9762\u7a4d \\(S\\) \u306f\\(\\frac{1}{2}Rl\\)
\n\u30fb\u5c0f\u3055\u3044\u306a\u6247\u5f62\u3092\u96c6\u3081\u3066\u5186\u3092\u3064\u304f\u308b\u3068\u3001\u534a\u5f84\u306f\u5171\u901a\u3067\u5f27\u306e\u9577\u3055\u3092\u96c6\u3081\u308b\u3068\u4e01\u5ea6\u5186\u5468\u306e\u9577\u3055 \\(L\\) \u306b\u306a\u308b\u3002
\n\u30fb\u305d\u308c\u3086\u3048\u3001\u534a\u5f84 \\(R\\) \u3001\u5186\u5468\u306e\u9577\u3055 \\(L\\) \u306e\u5186\u306e\u9762\u7a4d\\(S\\)\u306f\\(S=\\frac{1}{2}RL\\)
\n\u30fb\u3068\u3053\u308d\u3067\u3001\u5186\u5468\u306e\u9577\u3055 \\(L\\) \u306f\u5186\u5468\u7387\u3068\u76f4\u5f84\\(2R\\)\u3092\u4f7f\u3046\u3068 \\(L=\\pi \\times 2R=2\\pi R\\)
\n\u30fb\u306a\u306e\u3067\u3001\\(S=\\frac{1}{2}RL=\\frac{1}{2}R\\times2\\pi R=\\pi R^2\\)
\n\u30fb\u3053\u308c\u3067\u534a\u5f84\u00d7\u534a\u5f84\u00d73.141592....\u304c\u5c0e\u304b\u308c\u305f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5186\u306e\u9762\u7a4d\u3092\u6c42\u3081\u308b\u305f\u3081\u306b\u5186\u3092\u5c0f\u3055\u306a\u6247\u5f62\u306b\u5206\u5272\u3059\u308b\u65b9\u6cd5\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u304c\u3042\u308b \u30fb\u4e0a\u8a18\u306e\u65b9\u6cd5\u306f\u3001\u5c0f\u5b66\u751f\u306b\u3082\u308f\u304b\u308b\u65b9\u6cd5\u3068\u3057\u3066\u89e3\u8aac\u3055\u308c\u308b\u304c\u3001\u5c0f\u3055\u306a\u6247\u5f62\u30922\u3064\u7d44\u307f\u5408\u308f\u305b\u3066\u4e09\u89d2\u5f62\u3084\u5e73\u884c\u56db\u8fba\u5f62\u3092\u4f5c\u308b\u65b9\u6cd5\u304c\u89e3\u8aac\u3055\u308c\u3066\u3044\u308b\u3002\u3044\u305a\u308c\u3082\u5c0f\u3055\u306a\u6247\u5f62 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_vk_print_noindex":"","sitemap_hide":"","vkExUnit_sitemap":"","_veu_custom_css":"","veu_display_promotion_alert":"","_exclude_from_list_pages":"","vkexunit_cta_each_option":"","vkExUnit_childPageIndex":"","vkExUnit_pageList_ancestor":"","vkExUnit_contact_enable":"","_lightning_design_setting":{"layout":"default","header_trans":"default","section_base":"default"},"header_top_description":"","vk_page_header_image":0,"vk_page_header_image_sp":0,"vk_page_header_subtext":"","footnotes":""},"class_list":["post-1016","page","type-page","status-publish","hentry"],"veu_head_title_object":{"title":"","add_site_title":""},"_links":{"self":[{"href":"https:\/\/www.kurashiki-cu.ac.jp\/it\/index.php\/wp-json\/wp\/v2\/pages\/1016","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kurashiki-cu.ac.jp\/it\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.kurashiki-cu.ac.jp\/it\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.kurashiki-cu.ac.jp\/it\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kurashiki-cu.ac.jp\/it\/index.php\/wp-json\/wp\/v2\/comments?post=1016"}],"version-history":[{"count":56,"href":"https:\/\/www.kurashiki-cu.ac.jp\/it\/index.php\/wp-json\/wp\/v2\/pages\/1016\/revisions"}],"predecessor-version":[{"id":1369,"href":"https:\/\/www.kurashiki-cu.ac.jp\/it\/index.php\/wp-json\/wp\/v2\/pages\/1016\/revisions\/1369"}],"wp:attachment":[{"href":"https:\/\/www.kurashiki-cu.ac.jp\/it\/index.php\/wp-json\/wp\/v2\/media?parent=1016"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}