{"id":1773,"date":"2025-12-24T17:19:57","date_gmt":"2025-12-24T08:19:57","guid":{"rendered":"https:\/\/math-travel.com\/?p=1773"},"modified":"2026-02-11T16:55:27","modified_gmt":"2026-02-11T07:55:27","slug":"fivecentroids","status":"publish","type":"post","link":"https:\/\/math-travel.jp\/math-a\/fivecentroids\/","title":{"rendered":"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\uff08\u91cd\u5fc3\u30fb\u5916\u5fc3\u30fb\u5185\u5fc3\u30fb\u5782\u5fc3\u30fb\u508d\u5fc3\uff09\u306e\u6027\u8cea\u3068\u9055\u3044\u3092\u4e00\u89a7\u6bd4\u8f03\uff01"},"content":{"rendered":"\n

\u300c\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3063\u3066\u306a\u306b\uff1f\u300d<\/span>
\u300c\u4e94\u5fc3\u306e\u6027\u8cea\u3092\u78ba\u8a8d\u3057\u305f\u3044\u300d<\/span>
\u4eca\u56de\u306f\u3053\u3093\u306a\u60a9\u307f\u3092\u89e3\u6c7a\u3057\u307e\u3059\u3002<\/p>\n\n\n

\"\"\u9ad8\u6821\u751f<\/span><\/div>
\n

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\n
\"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u306e\u4e00\u89a7\"<\/figure>\n<\/div>\n\n\n

\u4e94\u5fc3\u306e\u4e2d\u3067\u3082\u3088\u304f\u77e5\u3089\u308c\u3066\u3044\u308b\u3082\u306e\u3068\u3001\u521d\u3081\u3066\u805e\u304f\u3088\u3046\u306a\u3082\u306e\u3082\u3042\u308a\u307e\u3059\u306d\u3002<\/p>\n\n\n\n

\u672c\u8a18\u4e8b\u3067\u306f\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u305d\u308c\u305e\u308c\u306e\u5b9a\u7fa9\u3068\u6027\u8cea<\/span>\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

\u672c\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u306b\u3064\u3044\u3066\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u307e\u3068\u3081\u307e\u3057\u305f\u306e\u3067\u3001\u305c\u3072\u6700\u5f8c\u307e\u3067\u898b\u3066\u3044\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n

\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3<\/h2>\n\n\n
\n
\"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\"<\/figure>\n<\/div>\n\n\n

\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3068\u306f\u3001\u300c\u91cd\u5fc3\u300d\u300c\u5185\u5fc3\u300d\u300c\u5916\u5fc3\u300d\u300c\u5782\u5fc3\u300d\u300c\u508d\u5fc3\u300d<\/span>\u306e\uff15\u3064\u306e\u70b9\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

5\u3064\u306e\u70b9\u306f\u3001\u305d\u308c\u305e\u308c\u5b9a\u7fa9\u3084\u6027\u8cea\u304c\u307e\u3063\u305f\u304f\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\u4e94\u5fc3\u306e\u5b9a\u7fa9<\/span><\/div>
\n

\u91cd\u5fc3
“\u4e09\u89d2\u5f62\u306e\u5404\u9802\u70b9\u304b\u3089\u5f15\u3044\u305f\u4e2d\u7dda\u306e\u4ea4\u70b9”
\u2460\u4e2d\u7dda\u30922:1\u306b\u5185\u5206\u3059\u308b
\u24613:\u5185\u90e8\u306b\u3067\u304d\u308b6\u3064\u306e\u4e09\u89d2\u5f62\u306f\u9762\u7a4d\u304c\u7b49\u3057\u3044<\/p>\n\n\n\n

\u5185\u5fc3
“\u4e09\u89d2\u5f62\u306e\u5185\u89d2\u306e\u4e8c\u7b49\u5206\u7dda\u306e\u4ea4\u70b9”
\u2460\u5185\u63a5\u5186\u306e\u4e2d\u5fc3
\u2461\u5185\u5fc3\u3068\u5404\u8fba\u306e\u8ddd\u96e2\u304c\u7b49\u3057\u3044<\/p>\n\n\n\n

\u5916\u5fc3
“\u4e09\u89d2\u5f62\u306e\u5404\u8fba\u306e\u5782\u76f4\u4e8c\u7b49\u5206\u7dda\u306e\u4ea4\u70b9”
\u2460\u5916\u63a5\u5186\u306e\u4e2d\u5fc3
\u2461\u5916\u5fc3\u3068\u5404\u9802\u70b9\u306e\u8ddd\u96e2\u304c\u7b49\u3057\u3044<\/p>\n\n\n\n

\u5782\u5fc3
“\u5404\u9802\u70b9\u304b\u3089\u5bfe\u8fba\u306b\u5411\u304b\u3063\u3066\u5f15\u3044\u305f\u5782\u7dda\u306e\u4ea4\u70b9”<\/p>\n\n\n\n

\u508d\u5fc3
“\u89d2\u306e\u4e8c\u7b49\u5206\u7dda\u30682\u3064\u306e\u5916\u89d2\u306e\u4e8c\u7b49\u5206\u7dda\u306e\u4ea4\u70b9”<\/p>\n<\/div><\/div>\n\n\n\n

\u4e94\u5fc3\u306f\u3059\u3079\u3066\u30b3\u30f3\u30d1\u30b9\u3068\u5b9a\u898f\u3067\u4f5c\u56f3\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n

\n
\"\u5185\u5fc3\u306e\u4f5c\u56f3\u306b\u5fc5\u8981\u306a\u3082\u306e\"<\/figure>\n<\/div>\n\n
\"\"\u30b7\u30fc\u30bf<\/span><\/div>
\n

\u4e94\u5fc3\u305d\u308c\u305e\u308c\u306e\u66f8\u304d\u65b9\u3068\u6027\u8cea\u306f\u899a\u3048\u3066\u304a\u3053\u3046\uff01<\/p>\n<\/span><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n

\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u91cd\u5fc3<\/h2>\n\n\n\n

\u4e09\u89d2\u5f62\u306e\u91cd\u5fc3\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n

\n
\"\u4e09\u89d2\u5f62\u306e\u91cd\u5fc3\"<\/figure>\n<\/div>\n\n\n
\u91cd\u5fc3<\/span><\/div>
\n

\u91cd\u3055\u306e\u4e2d\u5fc3\u306e\u70b9
\u82f1\u8a9e\u3067\u300ccenter of Gravity\u300d\u306e\u305f\u3081\u3001\u70b9G\u3068\u8868\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n<\/div><\/div>\n\n\n\n

\u91cd\u5fc3\u306f\u30b9\u30dd\u30fc\u30c4\u306a\u3069\u3067\u3082\u805e\u304f\u5358\u8a9e\u306a\u306e\u3067\u3001\u6bd4\u8f03\u7684\u89aa\u3057\u307f\u3084\u3044\u3067\u3059\u306d\u3002<\/p>\n\n\n\n

\u91cd\u5fc3\u306e\u5b9a\u7fa9\u306f\u3001\u300c3\u672c\u306e\u4e2d\u7dda\u306e\u4ea4\u70b9<\/span>\u300d\u3067\u3059\u3002<\/p>\n\n\n\n

\u4e09\u89d2\u5f62\u306e\u91cd\u5fc3\u306e\u5b9a\u7fa9<\/span><\/div>
\n

\u4e09\u89d2\u5f62\u306e\u5404\u9802\u70b9\u304b\u3089\u5f15\u3044\u305f\u4e2d\u7dda\u306e\u4ea4\u70b9<\/p>\n<\/div><\/div>\n\n\n\n

\u4e2d\u7dda\u3068\u306f\u3001\u9802\u70b9\u304b\u3089\u5411\u304b\u3044\u5408\u3046\u8fba\u306e\u4e2d\u70b9\u3092\u7d50\u3093\u3060\u7dda\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n\n\n

\n
\"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u91cd\u5fc3\"<\/figure>\n<\/div>\n\n\n
\u4e09\u89d2\u5f62\u306e\u91cd\u5fc3\u3000\u6027\u8cea<\/span><\/div>
\n
    \n
  1. \u9802\u70b9\u3068\u91cd\u5fc3\u3092\u7d50\u3076\u3068\u3001\u5411\u304b\u3044\u5408\u3046\u8fba\u3092\u4e8c\u7b49\u5206\u3059\u308b<\/li>\n\n\n\n
  2. \u4e2d\u7dda\u30922:1\u306b\u5185\u5206\u3059\u308b<\/li>\n<\/ol>\n<\/div><\/div>\n\n\n\n

    1:<\/span>\u9802\u70b9\u3068\u91cd\u5fc3\u3092\u7d50\u3076\u3068\u3001\u5411\u304b\u3044\u5408\u3046\u8fba\u3092\u4e8c\u7b49\u5206\u3059\u308b<\/span><\/p>\n\n\n

    \n
    \"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u91cd\u5fc3\"<\/figure>\n<\/div>\n\n\n

    \u4e09\u89d2\u5f62\u306e\u3042\u308b\u9802\u70b9\u304b\u3089\u3001\u91cd\u5fc3\u3092\u901a\u308b\u3088\u3046\u306b\u76f4\u7dda\u3092\u7d50\u3076\u3068\u5411\u304b\u3044\u5408\u3046\u8fba\u3092\u4e8c\u7b49\u5206\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

    \u3053\u308c\u306f\u91cd\u5fc3\u306e\u5b9a\u7fa9\u304c\u3001\u300c3\u672c\u306e\u4e2d\u7dda\u306e\u4ea4\u70b9\u300d\u306a\u306e\u3067\u5f53\u7136\u306e\u6027\u8cea\u3067\u3059\u3002<\/p>\n\n\n

    \n
    \"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u91cd\u5fc3\"<\/figure>\n<\/div>\n\n\n

    2:<\/span>\u4e2d\u7dda\u3092<\/span>2:1<\/span>\u306b\u5185\u5206\u3059\u308b<\/span>
    <\/p>\n\n\n\n

    \u91cd\u5fc3\u306f\u305d\u308c\u305e\u308c\u306e\u4e2d\u5fc3\u30922:1\u306b\u306a\u308b\u3088\u3046\u306b\u5185\u5206\u3059\u308b\u6027\u8cea\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

    \u3053\u306e\u6027\u8cea\u306f\u4e2d\u5b66\u6821\u3067\u7fd2\u3046\u3001\u4e2d\u70b9\u9023\u7d50\u5b9a\u7406\u3092\u3064\u304b\u3063\u3066\u8a3c\u660e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

    \u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u5185\u5fc3<\/h2>\n\n\n\n

    \u4e09\u89d2\u5f62\u306e\u5185\u5fc3\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

    \u5185\u5fc3\u306f\u300c\u5185\u63a5\u5186\u306e\u4e2d\u5fc3\u300d\u3068\u3057\u3066\u3088\u304f\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u306d\u3002<\/p>\n\n\n\n

    \u4e09\u89d2\u5f62\u306e\u5185\u5fc3\u306e\u5b9a\u7fa9<\/span><\/div>
    \n

    \u4e09\u89d2\u5f62\u306e\u5185\u89d2\u306e\u4e8c\u7b49\u5206\u7dda\u306e\u4ea4\u70b9<\/p>\n<\/div><\/div>\n\n\n

    \n
    \"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u5185\u5fc3\"<\/figure>\n<\/div>\n\n\n
    \u4e09\u89d2\u5f62\u306e\u5185\u5fc3\u3000\u6027\u8cea<\/span><\/div>
    \n
      \n
    1. \u89d2\u3092\u4e8c\u7b49\u5206\u3059\u308b<\/li>\n\n\n\n
    2. \u5185\u5fc3\u3068\u5404\u8fba\u3068\u306e\u8ddd\u96e2\u304c\u7b49\u3057\u3044<\/li>\n\n\n\n
    3. \u5185\u63a5\u5186\u306e\u4e2d\u5fc3<\/li>\n<\/ol>\n<\/div><\/div>\n\n\n\n

      \u5185\u5fc3\u306e\u6027\u8cea\u3068\u5408\u308f\u305b\u3066\u3001\u5185\u63a5\u5186\u306e\u6027\u8cea\u3082\u78ba\u8a8d\u3057\u3066\u304a\u304f\u3068\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n

      1:<\/span>\u89d2\u3092\u4e8c\u7b49\u5206\u3059\u308b<\/span><\/p>\n\n\n\n

      \u5b9a\u7fa9\u304c\u89d2\u306e\u4e8c\u7b49\u5206\u7dda\u306e\u4ea4\u70b9\u306a\u306e\u3067\u3001\u5f53\u305f\u308a\u524d\u3067\u3059\u3088\u306d<\/p>\n\n\n

      \n
      \"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u5185\u5fc3\"<\/figure>\n<\/div>\n\n\n

      2:<\/span>\u5185\u5fc3\u3068\u5404\u8fba\u3068\u306e\u8ddd\u96e2\u304c\u7b49\u3057\u3044<\/span><\/p>\n\n\n

      \n
      \"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u5185\u5fc3\"<\/figure>\n<\/div>\n\n
      \n
      \"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u5185\u5fc3\"<\/figure>\n<\/div>\n\n\n

      3:<\/span>\u5185\u63a5\u5186\u306e\u4e2d\u5fc3<\/span>
      <\/p>\n\n\n\n

      \u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u5916\u5fc3<\/h2>\n\n\n\n

      \u4e09\u89d2\u5f62\u306e\u5916\u5fc3\u306f\u6cb9\u65ad\u3059\u308b\u3068\u5fd8\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3088\u306d\u3002<\/p>\n\n\n\n

      \u5916\u5fc3\u306f\u5916\u63a5\u5186\u306e\u4e2d\u5fc3\u3067\u3082\u3042\u308b\u306e\u3067\u8981\u30c1\u30a7\u30c3\u30af\u3067\u3059\u3002<\/p>\n\n\n\n

      \u4e09\u89d2\u5f62\u306e\u5916\u5fc3\u306e\u5b9a\u7fa9<\/span><\/div>
      \n

      \u4e09\u89d2\u5f62\u306e\u5404\u8fba\u306e\u5782\u76f4\u4e8c\u7b49\u5206\u7dda\u306e\u4ea4\u70b9<\/p>\n<\/div><\/div>\n\n\n

      \n
      \"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u5916\u5fc3\"<\/figure>\n<\/div>\n\n\n
      \u4e09\u89d2\u5f62\u306e\u5916\u5fc3\u3000\u6027\u8cea<\/span><\/div>
      \n
        \n
      1. \u5404\u8fba\u306b\u5782\u7dda\u3092\u5f15\u304f\u3068\u4e8c\u7b49\u5206\u3059\u308b<\/li>\n\n\n\n
      2. \u5916\u5fc3\u3068\u5404\u9802\u70b9\u3068\u306e\u8ddd\u96e2\u304c\u7b49\u3057\u3044<\/li>\n\n\n\n
      3. \u5916\u63a5\u5186\u306e\u4e2d\u5fc3<\/li>\n<\/ol>\n<\/div><\/div>\n\n\n
        \n
        \"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u5916\u5fc3\"<\/figure>\n<\/div>\n\n\n

        1:<\/span>\u5404\u8fba\u306b\u5782\u7dda\u3092\u5f15\u304f\u3068\u4e8c\u7b49\u5206\u3059\u308b<\/span>
        <\/p>\n\n\n

        \n
        \"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u5916\u5fc3\"<\/figure>\n<\/div>\n\n\n

        2:<\/span>\u5916\u5fc3\u3068\u5404\u9802\u70b9\u3068\u306e\u8ddd\u96e2\u304c\u7b49\u3057\u3044<\/span>
        <\/p>\n\n\n

        \n
        \"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u5916\u5fc3\"<\/figure>\n<\/div>\n\n\n

        3:<\/span>\u5916\u63a5\u5186\u306e\u4e2d\u5fc3<\/span>
        <\/p>\n\n\n\n

        \u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u5782\u5fc3<\/h2>\n\n\n\n

        \u4e09\u89d2\u5f62\u306e\u5782\u5fc3\u306f\u540d\u524d\u306e\u901a\u308a\u3001\u5782\u7dda\u306e\u96c6\u307e\u308b\u70b9\u3067\u3059\u3002<\/p>\n\n\n\n

        \u4e09\u89d2\u5f62\u306e\u5916\u5fc3\u306e\u5b9a\u7fa9<\/span><\/div>
        \n

        \u5404\u9802\u70b9\u304b\u3089\u5bfe\u8fba\u306b\u5f15\u3044\u305f\u5782\u7dda\u306e\u4ea4\u70b9<\/p>\n<\/div><\/div>\n\n\n

        \n
        \"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u5782\u5fc3\"<\/figure>\n<\/div>\n\n\n
        \u4e09\u89d2\u5f62\u306e\u5782\u5fc3\u3000\u6027\u8cea<\/span><\/div>
        \n
          \n
        1. \u56db\u89d2\u5f62ADHF,BEHD,CFHE\u306f\u5186\u306b\u5185\u63a5\u3059\u308b\u56db\u89d2\u5f62\u3067\u3042\u308b<\/li>\n\n\n\n
        2. \\(AH=2RcosA\\)<\/li>\n<\/ol>\n<\/div><\/div>\n\n\n
          \n
          \"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u5782\u5fc3\"<\/figure>\n<\/div>\n\n\n

          1:<\/span>\u56db\u89d2\u5f62<\/span>ADHF,BEHD,CFHE<\/span>\u306f\u5186\u306b\u5185\u63a5\u3059\u308b\u56db\u89d2\u5f62\u3067\u3042\u308b<\/span>
          <\/p>\n\n\n

          \n
          \"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u5782\u5fc3\"<\/figure>\n<\/div>\n\n\n

          2:\\(AH=2RcosA\\)<\/span>
          \u25b3ABC\u306e\u5916\u63a5\u5186\u306e\u534a\u5f84\u3092R\u3068\u3059\u308b\u3002
          <\/p>\n\n\n\n

          \u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u508d\u5fc3<\/h2>\n\n\n\n

          \u304a\u305d\u3089\u304f\u300c\u508d\u5fc3\u300d\u304c\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u306e\u306a\u304b\u30671\u756a\u30de\u30a4\u30ca\u30fc\u3060\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

          \u77e5\u3063\u3066\u304a\u3044\u3066\u640d\u306f\u306a\u3044\u306e\u3067\u78ba\u8a8d\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n

          \u4e09\u89d2\u5f62\u306e\u508d\u5fc3\u306e\u5b9a\u7fa9<\/span><\/div>
          \n

          \u89d2\u306e\u4e8c\u7b49\u5206\u7dda\u30682\u3064\u306e\u5916\u89d2\u306e\u4e8c\u7b49\u5206\u7dda\u306e\u4ea4\u70b9<\/p>\n<\/div><\/div>\n\n\n

          \n
          \"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u508d\u5fc3\"<\/figure>\n<\/div>\n\n\n
          \u4e09\u89d2\u5f62\u306e\u508d\u5fc3\u3000\u6027\u8cea<\/span><\/div>
          \n

          \u4e09\u89d2\u5f62ABC\u306e\u9762\u7a4d\u3092\\(S\\)\u3001\\(\\displaystyle s=\\frac{a+b+c}{2}\\)\u3068\u3059\u308b\u3068\u3001<\/p>\n\n\n\n

          \\[S=\\displaystyle \\frac{1}{2} r_{A}(-a+b+c)=r_{A}(s-a)\\]<\/p>\n<\/div><\/div>\n\n\n\n

          \u4e09\u89d2\u5f62ABC\u306e\u9762\u7a4d\u3092\\(S\\)\u3001\\(s=\\displaystyle \\frac{a+b+c}{2}\\)\u3068\u3059\u308b\u3068\u3001<\/p>\n\n\n\n

          \\[S=\\displaystyle \\frac{1}{2} r_{A}(-a+b+c)=r_{A}(s-a)\\]<\/p>\n\n\n

          \n
          \"\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u508d\u5fc3\"<\/figure>\n<\/div>\n\n\n

          \u4e94\u5fc3\u3059\u3079\u3066\u306e\u6027\u8cea\u3092\u899a\u3048\u3089\u308c\u308b\u3068\u30d9\u30b9\u30c8\u3067\u3059\u304c\u3001\u306a\u304b\u306a\u304b\u96e3\u3057\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

          \u306a\u306e\u3067<\/span><\/span>\u300c\u5185\u5fc3\u300d<\/span>\u300c\u91cd\u5fc3\u300d\u300c\u5916\u5fc3\u300d<\/span>\u306f\u4e94\u5fc3\u306e\u4e2d\u3067\u3082\u91cd\u8981\u306a\u306e\u3067\u512a\u5148\u3057\u3066\u899a\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n

          \u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3000\u307e\u3068\u3081<\/h2>\n\n\n\n

          \u4eca\u56de\u306f\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/span><\/p>\n\n\n\n

          \u4e94\u5fc3\u304c\u554f\u984c\u306b\u306a\u308b\u3068\u304d\u306f\u3001\u305d\u308c\u305e\u308c\u306e\u6027\u8cea\u3092\u77e5\u3063\u3066\u3044\u308b\u524d\u63d0\u3067\u51fa\u984c\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n\n\n\n

          \u3053\u3053\u3067\u7d39\u4ecb\u3057\u305f\u6027\u8cea\u3060\u3051\u3067\u5341\u5206\u306a\u306e\u3067\u3001\u5fc5\u305a\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n

          \u6559\u79d1\u66f8\u306b\u5185\u5bb9\u306b\u6cbf\u3063\u305f\u89e3\u8aac\u8a18\u4e8b\u3092\u6319\u3052\u3066\u3044\u308b\u306e\u3067\u3001\u5b9a\u671f\u8a66\u9a13\u524d\u306b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n

          \u305d\u308c\u3067\u306f\u6700\u5f8c\u307e\u3067\u3054\u89a7\u3044\u305f\u3060\u304d\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

          \u307f\u3093\u306a\u306e\u52aa\u529b\u304c\u5831\u308f\u308c\u307e\u3059\u3088\u3046\u306b\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

          \u300c\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3063\u3066\u306a\u306b\uff1f\u300d\u300c\u4e94\u5fc3\u306e\u6027\u8cea\u3092\u78ba\u8a8d\u3057\u305f\u3044\u300d\u4eca\u56de\u306f\u3053\u3093\u306a\u60a9\u307f\u3092\u89e3\u6c7a\u3057\u307e\u3059\u3002 \u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\u3068\u306f\u3001\u300c\u91cd\u5fc3\u300d\u300c\u5185\u5fc3\u300d\u300c\u5916\u5fc3\u300d\u300c\u5782\u5fc3\u300d\u300c\u508d\u5fc3\u300d\u306e5\u3064\u306e\u70b9\u3092\u6307\u3057\u307e\u3059\u3002 \u4e94\u5fc3\u306e\u4e2d\u3067\u3082\u3088\u304f\u77e5\u3089\u308c\u3066\u3044\u308b\u3082\u306e\u3068\u3001\u521d\u3081\u3066\u805e\u304f\u3088\u3046\u306a\u3082 […]<\/p>\n","protected":false},"author":1,"featured_media":4953,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[29,223],"tags":[28,10,11],"class_list":["post-1773","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zukei","category-math-a","tag-28","tag-a","tag-11"],"yoast_head":"\n\u4e09\u89d2\u5f62\u306e\u4e94\u5fc3\uff08\u91cd\u5fc3\u30fb\u5916\u5fc3\u30fb\u5185\u5fc3\u30fb\u5782\u5fc3\u30fb\u508d\u5fc3\uff09\u306e\u6027\u8cea\u3068\u9055\u3044\u3092\u4e00\u89a7\u6bd4\u8f03\uff01<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/math-travel.jp\/math-a\/fivecentroids\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" 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