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\u7d50\u6676\u683c\u5b50\u306e\u5f62\u3084\u7279\u5fb4\u306f\u79c1\u305f\u3061\u306b\u3068\u3063\u3066\u99b4\u67d3\u307f\u304c\u3042\u308a\u307e\u305b\u3093\u3002\u305f\u3060\u5316\u5b66\u3067\u554f\u984c\u304c\u51fa\u3055\u308c\u308b\u3068\u304d\u3001\u5358\u4f4d\u683c\u5b50\u306e\u7279\u5fb4\u3092\u899a\u3048\u3066\u3044\u306a\u3044\u3068\u554f\u984c\u3092\u89e3\u3051\u307e\u305b\u3093\u3002\u305d\u3053\u3067\u3001\u305d\u308c\u305e\u308c\u306e\u5185\u5bb9\u3092\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n \u30fb\u4f53\u5fc3\u7acb\u65b9\u683c\u5b50<\/strong><\/p>\n \u7acb\u65b9\u4f53\u306b\u3064\u3044\u3066\u3001\u305d\u308c\u305e\u308c\u306e\u9802\u70b9\u3068\u4e2d\u5fc3\u306b\u539f\u5b50\u304c\u914d\u7f6e\u3055\u308c\u3066\u3044\u308b\u7d50\u6676\u69cb\u9020\u3092\u4f53\u5fc3\u7acb\u65b9\u683c\u5b50\u3068\u3044\u3044\u307e\u3059\u3002<\/p>\n \u7acb\u65b9\u4f53\u306e\u4e2d\u5fc3\u306b\u539f\u5b50\u304c\u3042\u308a\u3001\u305d\u306e\u5468\u308a\u3092\u53d6\u308a\u56f2\u3080\u3088\u3046\u306b\u539f\u5b50\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n \u30fb\u9762\u5fc3\u7acb\u65b9\u683c\u5b50<\/strong><\/p>\n \u9762\u5fc3\u7acb\u65b9\u683c\u5b50\u3067\u306f\u3001\u305d\u308c\u305e\u308c\u306e\u9802\u70b9\u3068\u9762\u306e\u4e2d\u5fc3\u306b\u539f\u5b50\u304c\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n \u4f53\u5fc3\u7acb\u65b9\u683c\u5b50\u306e\u3088\u3046\u306b\u3001\u7acb\u65b9\u4f53\u306e\u4e2d\u5fc3\u306b\u539f\u5b50\u306f\u5b58\u5728\u3057\u307e\u305b\u3093\u3002\u305d\u306e\u4ee3\u308f\u308a\u3001\u9762\u306e\u4e2d\u5fc3\u306b\u539f\u5b50\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n \u30fb\u516d\u65b9\u6700\u5bc6\u69cb\u9020<\/strong><\/p>\n \u4f53\u5fc3\u7acb\u65b9\u683c\u5b50\u3084\u9762\u5fc3\u7acb\u65b9\u683c\u5b50\u306b\u5bfe\u3057\u3066\u3001\u516d\u65b9\u6700\u5bc6\u69cb\u9020\u306f\u8907\u96d1\u306a\u69cb\u9020\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u304c\u516d\u65b9\u6700\u5bc6\u69cb\u9020\u3067\u3059\u3002<\/p>\n \u4f53\u5fc3\u7acb\u65b9\u683c\u5b50\u3068\u9762\u5fc3\u7acb\u65b9\u683c\u5b50\u306e\u4e21\u65b9\u304c\u7d44\u307f\u5408\u308f\u3055\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u516d\u65b9\u6700\u5bc6\u69cb\u9020\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n \u306a\u304a\u516d\u65b9\u6700\u5bc6\u69cb\u9020\u306e\u6ce8\u610f\u70b9\u3068\u3057\u3066\u3001\u5358\u4f4d\u683c\u5b50\u3092\u9593\u9055\u3048\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002\u516d\u65b9\u6700\u5bc6\u69cb\u9020\u306e\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u90e8\u5206\u304c\u5358\u4f4d\u683c\u5b50\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n \u516d\u89d2\u67f1\u306e\u3046\u3061\u30013\u5206\u306e1\u304c\u5358\u4f4d\u683c\u5b50\u3067\u3059\u3002<\/span>\u516d\u89d2\u67f1\u5168\u4f53\u304c\u5358\u4f4d\u683c\u5b50\u3067\u306f\u306a\u3044\u70b9\u306b\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n \u306a\u304a\u5316\u5b66\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u7d50\u6676\u683c\u5b50\u3092\u5229\u7528\u3057\u3066\u554f\u984c\u304c\u51fa\u3055\u308c\u307e\u3059\u3002\u554f\u308f\u308c\u308b\u5185\u5bb9\u306f\u4ee5\u4e0b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n \u305d\u3053\u3067\u3001\u3053\u308c\u3089\u306e\u9805\u76ee\u306b\u5bfe\u3057\u3066\u7b54\u3048\u3089\u308c\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n \u307e\u305a\u3001\u914d\u4f4d\u6570\u3084\u5358\u4f4d\u683c\u5b50\u306b\u5b58\u5728\u3059\u308b\u539f\u5b50\u306e\u6570\u3001\u539f\u5b50\u534a\u5f84\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002\u914d\u4f4d\u6570\u3068\u306f\u3001\u4e00\u3064\u306e\u539f\u5b50\u306b\u7740\u76ee\u3059\u308b\u3068\u304d\u3001\u3044\u304f\u3064\u306e\u539f\u5b50\u3068\u63a5\u3057\u3066\u3044\u308b\u306e\u304b\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n \u30fb\u4f53\u5fc3\u7acb\u65b9\u683c\u5b50<\/strong><\/p>\n \u7d50\u6676\u683c\u5b50\u3067\u306f\u3001\u7acb\u65b9\u4f53\u3092\u57fa\u6e96\u306b\u8003\u3048\u307e\u3057\u3087\u3046\u3002\u7acb\u65b9\u4f53\u304b\u3089\u306f\u307f\u51fa\u3066\u3044\u308b\u90e8\u5206\u3092\u30ab\u30c3\u30c8\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u4f8b\u3048\u3070\u4f53\u5fc3\u7acb\u65b9\u683c\u5b50\u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n \u771f\u3093\u4e2d\u306b\u3042\u308b\u539f\u5b50\u306b\u7740\u76ee\u3059\u308b\u3068\u3001\u63a5\u3057\u3066\u3044\u308b\u539f\u5b50\u306e\u6570\u306f8\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u914d\u4f4d\u6570\u306f8\u3067\u3059\u3002\u307e\u305f\u4f53\u5fc3\u7acb\u65b9\u683c\u5b50\u306b\u5b58\u5728\u3059\u308b\u539f\u5b50\u306e\u6570\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n \\(1+\\displaystyle\\frac{1}{8}\u00d78=2\\)<\/p>\n \u3053\u3046\u3057\u3066\u3001\u5358\u4f4d\u683c\u5b50\u306b\u5b58\u5728\u3059\u308b\u539f\u5b50\u306e\u6570\u306f2\u3068\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n \u307e\u305f\u539f\u5b50\u306e\u534a\u5f84\u3092\u8a08\u7b97\u3059\u308b\u3068\u304d\u3001\u5358\u4f4d\u683c\u5b50\u306e\u4e00\u7247\u306e\u9577\u3055\u3092\\(a\\)\u3001\u539f\u5b50\u534a\u5f84\u3092\\(r\\)\u3068\u3057\u307e\u3057\u3087\u3046\u3002\u3053\u306e\u3068\u304d\u3001\u539f\u5b50\u304c\u63a5\u3057\u3066\u3044\u308b\u90e8\u5206\u306b\u7740\u76ee\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u56f3\u3092\u4f5c\u308c\u307e\u3059\u3002<\/p>\n \u305f\u3066\u306e\u9577\u3055\uff08\u4e00\u8fba\u306e\u9577\u3055\uff09\u306f\\(a\\)\u3067\u3059\u3002\u307e\u305f\u3001\u4e09\u5e73\u65b9\u306e\u5b9a\u7406\u3092\u5229\u7528\u3057\u3066\u6b63\u65b9\u5f62\u306e\u5bfe\u89d2\u7dda\u306e\u9577\u3055\u3092\u8a08\u7b97\u3059\u308b\u3068\\(\\sqrt{2}a\\)\u306b\u306a\u308a\u307e\u3059\u3002\u6a2a\u306e\u9577\u3055\u304c\\(\\sqrt{2}a\\)\u3067\u3042\u308b\u305f\u3081\u3001\u4e0a\u56f3\u3067\u306e\u5bfe\u89d2\u7dda\u306e\u9577\u3055\u306f\\(\\sqrt{3}a\\)\u3067\u3059\u3002<\/p>\n \u305d\u308c\u306b\u5bfe\u3057\u3066\u3001\u534a\u5f84\\(r\\)\u304c4\u3064\u5b58\u5728\u3059\u308b\u305f\u3081\u3001\u9577\u65b9\u5f62\u306e\u5bfe\u89d2\u7dda\u306e\u9577\u3055\u306f\\(4r\\)\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u539f\u5b50\u534a\u5f84\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n \\(4r=\\sqrt{3}a\\)<\/p>\n \\(r=\\displaystyle\\frac{\\sqrt{3}}{4}a\\)<\/p>\n \u30fb\u9762\u5fc3\u7acb\u65b9\u683c\u5b50<\/strong><\/p>\n \u6b21\u306b\u9762\u5fc3\u7acb\u65b9\u683c\u5b50\u306e\u914d\u4f4d\u6570\u3084\u5358\u4f4d\u683c\u5b50\u306b\u5b58\u5728\u3059\u308b\u539f\u5b50\u306e\u6570\u3001\u539f\u5b50\u534a\u5f84\u3092\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002\u9762\u5fc3\u7acb\u65b9\u683c\u5b50\u3067\u306f\u4ee5\u4e0b\u306e\u56f3\u3067\u8003\u3048\u307e\u3059\u3002<\/p>\n \u914d\u4f4d\u6570\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b2\u3064\u306e\u5358\u4f4d\u683c\u5b50\u3092\u5229\u7528\u3059\u308b\u3068\u7406\u89e3\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n \u8d64\u8272\u306e\u539f\u5b50\u306b\u7740\u76ee\u3059\u308b\u3068\u300112\u500b\u306e\u539f\u5b50\u3068\u63a5\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u9762\u5fc3\u7acb\u65b9\u683c\u5b50\u3067\u306e\u914d\u4f4d\u6570\u306f12\u3067\u3059\u3002<\/p>\n \u307e\u305f\u5358\u4f4d\u683c\u5b50\u306b\u5b58\u5728\u3059\u308b\u539f\u5b50\u306e\u6570\u306b\u3064\u3044\u3066\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n \\(\\displaystyle\\frac{1}{2}\u00d76+\\displaystyle\\frac{1}{8}\u00d78=4\\)<\/p>\n \u3053\u3046\u3057\u3066\u3001\u5358\u4f4d\u683c\u5b50\u306e\u4e2d\u306b4\u3064\u5206\u306e\u539f\u5b50\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u3068\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n \u305d\u308c\u3067\u306f\u3001\u539f\u5b50\u534a\u5f84\u306b\u3064\u3044\u3066\u306f\u3069\u306e\u3088\u3046\u306b\u8a08\u7b97\u3059\u308c\u3070\u3044\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u5358\u4f4d\u683c\u5b50\u306e\u4e00\u7247\u306e\u9577\u3055\u3092\\(a\\)\u3001\u539f\u5b50\u534a\u5f84\u3092\\(r\\)\u3068\u3059\u308b\u3068\u304d\u3001\u6b63\u65b9\u5f62\u306e\u56f3\u3092\u5229\u7528\u3057\u3066\u534a\u5f84\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n \u4e00\u8fba\u304c\\(a\\)\u3067\u3042\u308b\u305f\u3081\u3001\u6b63\u65b9\u5f62\u306e\u5bfe\u89d2\u7dda\u306e\u9577\u3055\u306f\\(\\sqrt{2}a\\)\u3067\u3059\u3002\u307e\u305f\u534a\u5f84\\(r\\)\u304c4\u3064\u3042\u308b\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u8a08\u7b97\u306b\u3088\u3063\u3066\u534a\u5f84\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n \\(4r=\\sqrt{2}a\\)<\/p>\n \\(r=\\displaystyle\\frac{\\sqrt{2}}{4}a\\)<\/p>\n \u30fb\u516d\u65b9\u6700\u5bc6\u69cb\u9020<\/strong><\/p>\n \u516d\u65b9\u6700\u5bc6\u69cb\u9020\u3067\u914d\u4f4d\u6570\u3092\u6570\u3048\u308b\u3068\u304d\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b2\u3064\u306e\u5358\u4f4d\u683c\u5b50\u3092\u3064\u306a\u304e\u307e\u3057\u3087\u3046\u3002<\/p>\n \u9ed2\u8272\u306e\u539f\u5b50\u306b\u7740\u76ee\u3059\u308b\u3068\u300112\u500b\u306e\u539f\u5b50\u3068\u96a3\u63a5\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u516d\u65b9\u6700\u5bc6\u69cb\u9020\u306e\u914d\u4f4d\u6570\u306f12\u3067\u3059\u3002<\/p>\n \u307e\u305f\u5358\u4f4d\u683c\u5b50\u306b\u5b58\u5728\u3059\u308b\u539f\u5b50\u306e\u6570\u306b\u3064\u3044\u3066\u3001\u4e0a\u9762\u306b\u3042\u308b\u539f\u5b50\u306f1.5\u500b\u3001\u4e2d\u306b\u3042\u308b\u539f\u5b50\u306f3\u500b\u3001\u4e0b\u9762\u306b\u3042\u308b\u539f\u5b50\u306f1.5\u500b\u3067\u3059\u3002\u3064\u307e\u308a\u3001\u5408\u8a086\u500b\u306e\u539f\u5b50\u304c\u516d\u89d2\u67f1\u306b\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n \u306a\u304a\u524d\u8ff0\u306e\u901a\u308a\u3001\u516d\u65b9\u6700\u5bc6\u69cb\u9020\u306e\u5358\u4f4d\u683c\u5b50\u306f3\u5206\u306e1\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5358\u4f4d\u683c\u5b50\u306b\u5b58\u5728\u3059\u308b\u539f\u5b50\u306e\u6570\u306f2\u3067\u3059\u3002<\/p>\n \u539f\u5b50\u534a\u5f84\u306b\u3064\u3044\u3066\u306f\u3001\u5358\u4f4d\u683c\u5b50\u306e\u4e00\u7247\u306e\u9577\u3055\u3092\\(a\\)\u3001\u539f\u5b50\u534a\u5f84\u3092\\(r\\)\u3068\u3059\u308b\u3068\u304d\u3001\u4ee5\u4e0b\u306e\u56f3\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n \u3053\u3046\u3057\u3066\u3001\u516d\u65b9\u6700\u5bc6\u69cb\u9020\u306e\u539f\u5b50\u534a\u5f84\u306f\\(r=\\displaystyle\\frac{a}{2}\\)\u3068\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n \u7d50\u6676\u683c\u5b50\u306b\u3064\u3044\u3066\u3001\u3069\u308c\u3060\u3051\u539f\u5b50\u3067\u6e80\u305f\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u3092\u8868\u3059\u306e\u304c\u5145\u586b\u7387\uff08\u3058\u3085\u3046\u3066\u3093\u308a\u3064\uff09\u3067\u3059\u3002\u539f\u5b50\u3068\u539f\u5b50\u306e\u9593\u306b\u306f\u3001\u5f53\u7136\u306a\u304c\u3089\u3059\u304d\u9593\u304c\u3042\u308a\u307e\u3059\u3002\u5145\u586b\u7387\u3068\u3044\u3046\u306e\u306f\u3001\u3069\u308c\u3060\u3051\u3059\u304d\u9593\u304c\u306a\u304f\u539f\u5b50\u304c\u57cb\u307e\u3063\u3066\u3044\u308b\u306e\u304b\u3092\u6307\u3057\u307e\u3059\u3002<\/span><\/p>\n 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