{"id":127,"date":"2008-03-14T06:00:00","date_gmt":"2008-03-13T21:00:00","guid":{"rendered":"http:\/\/fujishima.main.jp\/oldpuzzle\/reader_puzzle\/chochin01\/"},"modified":"2012-03-05T15:08:09","modified_gmt":"2012-03-05T06:08:09","slug":"chochin01","status":"publish","type":"post","link":"http:\/\/fujishima.main.jp\/oldpuzzle\/2008\/03\/14\/chochin01\/","title":{"rendered":"\u56f3\u5f62\u554f\u984c(1)\uff08by \u6843\u71c8\u3055\u3093\uff09"},"content":{"rendered":"<p><img decoding=\"async\" src=\"http:\/\/fujishima.main.jp\/image\/chochin_1_q.png\" alt=\"\u56f3\u5f62\u554f\u984c(1)\" \/><\/p>\n<p>\u4e0a\u56f3\u3067\u3001\u25b3\uff21\uff22\uff23\u3068\u25b3\uff21\uff24\uff25\u306f\u3068\u3082\u306b\u6b63\u4e09\u89d2\u5f62\u3067\u3001\uff26\u3001\uff27\u306f\u305d\u308c\u305e\u308c\u8fba\uff22\uff23\u3001\uff25\uff24\u306e\u4e2d\u70b9\u3067\u3042\u308b\u3002<br \/>\n\uff21\uff22\uff1d\uff12\uff43\uff4d\u3001\uff21\uff27\uff1d\uff11\uff43\uff4d\u3001\u2220\uff24\uff21\uff23\uff1d\uff14\uff15\u00b0\u306e\u3068\u304d\u3001\u25b3\uff21\uff26\uff27\u306e\u9762\u7a4d\u306f\u4f55\uff43\uff4d2\u304b\u3002<\/p>\n<p><em>\uff08\u3053\u306e\u554f\u984c\u3092\u63d0\u4f9b\u3057\u3066\u304f\u3060\u3055\u3063\u305f\u6843\u71c8\u3055\u3093\u306e\u30b3\u30e1\u30f3\u30c8\uff09<\/em><\/p>\n<blockquote>\n<p>\u611b\u77e5\u770c\u516c\u7acb\u9ad8\u6821\u5165\u8a66\u306e\u554f\u984c\u3067\u3059\u3002<br \/>\n\u4e2d\u5b66\u751f\u306e\u6307\u5c0e\u8981\u9818\u306e\u7bc4\u56f2\u5185\u3067\u89e3\u3051\u308b\u306e\u3067\u3059\u304c\u3001\u88dc\u52a9\u7dda\u3092\u7528\u3044\u3066<br \/>\n\u4e2d\u5b66\u751f\u304c\u3084\u308b\u3088\u3046\u306b\u30d1\u30ba\u30eb\u611f\u899a\u3067\u89e3\u3053\u3046\u3068\u3059\u308b\u3068\u3082\u306e\u3059\u3054\u304f\u96e3<br \/>\n\u3057\u3044\u3067\u3059\u3002<br \/>\n\u79c1\u306f\u4e00\u30f6\u6708\u4ee5\u4e0a\u89e3\u3051\u307e\u305b\u3093\u3067\u3057\u305f\uff08\u9ad8\u6821\u30ec\u30d9\u30eb\u306e\u6570\u5b66\u3092\u7528\u3044\u3066<br \/>\n\u7b54\u3048\u3060\u3051\u306f\u51fa\u305b\u3066\u3044\u307e\u3057\u305f\u304c\uff09\u3002<br \/>\n\u3069\u3046\u3044\u3046\u88dc\u52a9\u7dda\u3067\u89e3\u3051\u308b\u306e\u304b\u3001\u8aad\u8005\u6295\u7a3f\u3068\u8a00\u3046\u3088\u308a\u672c\u7de8\u3067\u51fa\u3057<br \/>\n\u3066\u9802\u3044\u305f\u3089\u7686\u3055\u3093\u306e\u76ee\u306b\u89e6\u308c\u3066\u3044\u308d\u3044\u308d\u306a\u610f\u898b\u304c\u805e\u3051\u305d\u3046\u3067\u3059<br \/>\n\u304c\u3001\u307e\u3041\u3001\u305d\u308c\u306f\u5358\u306a\u308b\u79c1\u306e\u6b32\u3067\uff08\u7b11<br \/>\n\u3053\u3093\u306a\u96e3\u554f\u306a\u30d1\u30ba\u30eb\u3092\u51fa\u3057\u3066\u304f\u308b\u9ad8\u6821\u5165\u8a66\u3001\u3057\u304b\u3082\u516c\u7acb\u9ad8\u6821\u306e<br \/>\n\u5165\u8a66\u3002\u534a\u7aef\u7121\u3044\u3067\u3059\uff08\u7206<\/p>\n<\/blockquote>\n<p><!--more--><br \/>\n<!--nextpage--><br \/>\n<strong>\uff08\u89e3\u7b54\uff09<\/strong><\/p>\n[latex]\\quicklatex{size=30}\\frac{3\\sqrt{2}+\\sqrt{6}}{8}[\/latex]\u3000<span class=\"unit\">cm<sup>2<\/sup><\/span><\/p>\n<p><strong>\uff08\u89e3\u304d\u65b9\uff09<\/strong><br \/>\n<img decoding=\"async\" src=\"http:\/\/fujishima.main.jp\/image\/chochin_1_a.png\" alt=\"\u56f3\u5f62\u554f\u984c(1)\u89e3\u7b54\" \/><\/p>\n<p>\uff21\u304b\u3089\uff22\uff23\u306b\u5e73\u884c\u306b\u5f15\u3044\u305f\u7dda\u3068\uff25\uff24\u3068\u306e\u4ea4\u70b9\u3092\uff30\u3001\uff21\uff27\u3092\u659c\u8fba\u3068\u3059\u308b\u76f4\u89d2\u4e8c\u7b49\u8fba\u4e09\u89d2\u5f62\u306e\u76f4\u89d2\u306e\u9802\u70b9\u3092\uff31\u3001\uff31\u304b\u3089\uff21\uff30\u306b\u4e0b\u308d\u3057\u305f\u5782\u7dda\u306e\u8db3\u3092\uff32\u3001\uff27\u304b\u3089\uff21\uff30\u306b\u4e0b\u308d\u3057\u305f\u5782\u7dda\u306e\u8db3\u3092\uff34\u3001\uff31\u304b\u3089\uff21\uff30\u306b\u5e73\u884c\u306b\u5f15\u3044\u305f\u7dda\u3068\uff27\uff34\u306e\u5ef6\u9577\u7dda\u3068\u306e\u4ea4\u70b9\u3092\uff33\u3068\u3059\u308b\u3002<\/p>\n<p>\u25b3\uff21\uff26\uff27\u306e\u9762\u7a4d\u306f\u3001[latex]\\quicklatex{size=20}\\frac{AF*AT}{2}[\/latex]\u3067\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n<p>\u307e\u305a\u3001\u25b3\uff21\uff22\uff23\u306f\u6b63\u4e09\u89d2\u5f62\u3067\u3001\uff26\u306f\uff22\uff23\u306e\u4e2d\u70b9\u3060\u304b\u3089\u3001\uff22\uff26\uff1d\uff11\uff43\uff4d\u3002\u307e\u305f\u3001\u2220\uff21\uff26\uff22\u306f\u76f4\u89d2\u3002<br \/>\n\u3059\u308b\u3068\u3001\u4e09\u5e73\u65b9\u306e\u5b9a\u7406\u3092\u4f7f\u3063\u3066\u3001[latex]AF=\\sqrt{2*2-1*1}=\\sqrt{3}[\/latex]\uff43\uff4d\u3000\u304c\u6c42\u307e\u308b\u3002<\/p>\n<p>\u6b21\u306b\uff21\uff34\u306e\u9577\u3055\u3092\u6c42\u3081\u308b\u3002<\/p>\n<p>\u307e\u305a\u3001\uff21\uff30\u3068\uff26\uff23\u306f\u5e73\u884c\u3060\u304b\u3089\u3001\u2220\uff26\uff21\uff30\uff1d\uff19\uff10\u00b0<br \/>\n\u2220\uff26\uff21\uff23\uff1d\uff13\uff10\u00b0\u3001\u2220\uff23\uff21\uff24\uff1d\uff14\uff15\u00b0\u3060\u304b\u3089\u3001\u2220\uff24\uff21\uff30\uff1d\uff19\uff10\u00b0\uff0d\uff08\uff13\uff10\u00b0\uff0b\uff14\uff15\u00b0\uff09\uff1d\uff11\uff15\u00b0<br \/>\n\u2220\uff24\uff21\uff27\uff1d\uff13\uff10\u00b0\u3060\u304b\u3089\u3001\u2220\uff30\uff21\uff27\uff1d\uff13\uff10\u00b0\uff0d\uff11\uff15\u00b0\uff1d\uff11\uff15\u00b0<br \/>\n\u25b3\uff21\uff31\uff27\u306f\u76f4\u89d2\u4e8c\u7b49\u8fba\u4e09\u89d2\u5f62\u3060\u304b\u3089\u3001\u2220\uff27\uff21\uff31\uff1d\uff14\uff15\u00b0<br \/>\n\u3057\u305f\u304c\u3063\u3066\u3001\u2220\uff24\uff21\uff31\uff1d\uff14\uff15\u00b0\uff0d\uff13\uff10\u00b0\uff1d\uff11\uff15\u00b0<br \/>\n\u3086\u3048\u306b\u3001\u2220\uff31\uff21\uff32\uff1d\uff11\uff15\u00b0\uff0b\uff11\uff15\u00b0\uff1d\uff13\uff10\u00b0<br \/>\n\u307e\u305f\u3001\u2220\uff21\uff32\uff31\uff1d\uff19\uff10\u00b0\u3060\u304b\u3089\u3001\u2220\uff21\uff31\uff32\uff1d\uff16\uff10\u00b0\u3002<br \/>\n\u3057\u305f\u304c\u3063\u3066\u3001\u25b3\uff21\uff31\uff32\u306f\u25b3\uff21\uff22\uff26\u3068\u76f8\u4f3c\u3067\u3001\uff21\uff31\uff1a\uff31\uff32\uff1a\uff21\uff32\uff1d\uff12\uff1a\uff11\uff1a[latex]\\sqrt{3}[\/latex]\n\uff21\uff27\uff1d\uff11\uff43\uff4d\u3067\u3001\u25b3\uff21\uff31\uff27\u306f\u76f4\u89d2\u4e8c\u7b49\u8fba\u4e09\u89d2\u5f62\u3060\u304b\u3089\u3001\uff21\uff31\uff1d[latex]\\frac{\\sqrt{2}}{2}[\/latex]\uff43\uff4d<br \/>\n\u3057\u305f\u304c\u3063\u3066\u3001\uff21\uff32\uff1d[latex]\\frac{\\sqrt{2}}{2}*\\frac{\\sqrt{3}}{2}=\\frac{\\sqrt{6}}{4}[\/latex]\uff43\uff4d<\/p>\n<p>\u6b21\u306b\u3001\uff21\uff26\u3068\uff27\uff33\u306f\u3001\u3068\u3082\u306b\uff21\uff30\u3068\u5782\u76f4\u306b\u4ea4\u308f\u308b\u7dda\u5206\u306a\u306e\u3067\u5e73\u884c\u3002<br \/>\n\u2220\uff26\uff21\uff27\uff1d\u2220\uff26\uff21\uff23\uff0b\u2220\uff23\uff21\uff24\uff0b\u2220\uff24\uff21\uff27\uff1d\uff13\uff10\u00b0\uff0b\uff14\uff15\u00b0\uff0b\uff13\uff10\u00b0\uff1d\uff11\uff10\uff15\u00b0<br \/>\n\u2220\uff30\uff21\uff27\uff1d\u2220\uff26\uff21\uff27\uff0d\u2220\uff26\uff21\uff30\uff1d\uff11\uff10\uff15\u00b0\uff0d\uff19\uff10\u00b0\uff1d\uff11\uff15\u00b0<br \/>\n\u2220\uff21\uff27\uff34\uff1d\uff11\uff18\uff10\u00b0\uff0d\uff08\u2220\uff21\uff34\uff27\uff0b\u2220\uff34\uff21\uff27\uff09\uff1d\uff11\uff18\uff10\u00b0\uff0d\uff08\uff19\uff10\u00b0\uff0b\uff11\uff15\u00b0\uff09\uff1d\uff17\uff15\u00b0<br \/>\n\u2220\uff21\uff27\uff31\uff1d\uff14\uff15\u00b0\u3060\u304b\u3089\u3001\u2220\uff31\uff27\uff33\uff1d\u2220\uff21\uff27\uff33\uff0d\u2220\uff21\uff27\uff31\uff1d\uff17\uff15\u00b0\uff0d\uff14\uff15\u00b0\uff1d\uff13\uff10\u00b0<br \/>\n\u2220\uff27\uff31\uff33\uff1d\uff11\uff18\uff10\u00b0\uff0d\uff08\u2220\uff31\uff33\uff27\uff0b\u2220\uff31\uff27\uff33\uff09\uff1d\uff11\uff18\uff10\u00b0\uff0d\uff08\uff19\uff10\u00b0\uff0b\uff13\uff10\u00b0\uff09\uff1d\uff16\uff10\u00b0<br \/>\n\u305d\u3057\u3066\u3001\uff21\uff31\uff1d\uff27\uff31\u3060\u304b\u3089\u3001\u25b3\uff21\uff31\uff32\u3068\u25b3\uff27\uff31\uff33\u306f\u5408\u540c\u3002\u3057\u305f\u304c\u3063\u3066\u3001\uff32\uff31\uff1d\uff31\uff33<br \/>\n\u307e\u305f\u3001\u56db\u89d2\u5f62\uff32\uff31\uff33\uff34\u306f\u3001\u3059\u3079\u3066\u306e\u89d2\u304c\u76f4\u89d2\u3060\u304b\u3089\u3001\u6b63\u65b9\u5f62\u3002\u3057\u305f\u304c\u3063\u3066\u3001\uff32\uff34\uff1d\uff32\uff31<br \/>\n\u3086\u3048\u306b\u3001\uff32\uff34\uff1d\uff32\uff31\uff1d\uff21\uff31\uff0f\uff12\uff1d[latex]\\frac{\\sqrt{2}}{2}[\/latex]\uff0f\uff12\uff1d[latex]\\frac{\\sqrt{2}}{4}[\/latex]\uff43\uff4d<br \/>\n\u3057\u305f\u304c\u3063\u3066\u3001\uff21\uff34\uff1d\uff21\uff32\uff0b\uff32\uff34\uff1d[latex]\\frac{\\sqrt{6}}{4}+\\frac{\\sqrt{2}}{4}[\/latex]\uff43\uff4d<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u25b3\uff21\uff27\uff26\uff1d\uff21\uff26\u30fb\uff21\uff34\uff0f\uff12\uff1d[latex]\\sqrt{3}[\/latex] * [latex]\\quicklatex{size=20}\\frac{\\frac{\\sqrt{6}+\\sqrt{2}}{4}}{2}=\\frac{3\\sqrt{2}+\\sqrt{6}}{8}[\/latex]\uff43\uff4d<sup>\uff12<\/sup><\/p>\n<p style=\"color: blue;\">\uff08\u85e4\u5cf6\u30b3\u30e1\u30f3\u30c8\uff1a\uff21\uff34\uff1d\uff21\uff27\u30fb\uff43\uff4f\uff53\uff11\uff15\u00b0\u306a\u306e\u306f\u3059\u3050\u308f\u304b\u308b\u306e\u3067\u3001\u4e09\u89d2\u95a2\u6570\u304c\u4f7f\u3048\u308c\u3070\u7c21\u5358\u306b\u89e3\u3051\u307e\u3059\u304c\u3001\u30d4\u30bf\u30b4\u30e9\u30b9\u306e\u5b9a\u7406\u3060\u3051\u3067\u89e3\u3053\u3046\u3068\u3059\u308b\u3068\u5927\u5909\u3067\u3059\u306d\u3002\u3061\u306a\u307f\u306b\u3001\u3053\u306e\u89e3\u304d\u65b9\u306f\u3001\u6b8b\u5ff5\u306a\u304c\u3089\u3001\u50d5\uff08\u85e4\u5cf6\uff09\u304c\u8003\u3048\u305f\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u300ccos15\u00b0\u300d\u3092\u30b0\u30b0\u3063\u3066\u898b\u3064\u3051\u305f\u3001<a href=\"http:\/\/www.shinko-keirin.co.jp\/kosu\/mathematics\/jissen\/syou.html\" target=\"_blank\">\u7058\u9ad8\u6821\u306e\u6570\u5b66\u306e\u5148\u751f\u306e\u8003\u3048\u65b9<\/a>\u3092\u62dd\u501f\u3057\u305f\u306e\u3082\u306e\u3067\u3059\u3002\u3044\u3084\u30fc\u3001\u3059\u3054\u3044\u3067\u3059\u306d\u3002\u611f\u670d\u3067\u3059\u3002\u305d\u308c\u306b\u3057\u3066\u3082\u3001\u3053\u3093\u306a\u554f\u984c\u3092\u9ad8\u6821\u5165\u8a66\u306b\u51fa\u3059\u611b\u77e5\u770c\u3063\u3066\u3001\u4f55\u8003\u3048\u3066\u308b\u3093\u3067\u3057\u3087\u3046\u306d\uff09<\/p>\n<p><strong>\uff08\u30b5\u30f3\u30d1\u30a6\u30ed\u5742\u672c\u3055\u3093\u306e\u89e3\u6cd5\uff09<\/strong><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/fujishima.main.jp\/oldpuzzle\/wp-content\/uploads\/105.png\" alt=\"\uff11\uff10\uff15\u00b0\u306e\u89d2\u5ea6\u3092\u6301\u3064\u4e09\u89d2\u5f62\u306e\u9762\u7a4d\" \/><\/p>\n<p>\u4e0a\u56f3\u306e\u3001\u4e09\u89d2\u5b9a\u898f\u3092\uff12\u679a\u8cbc\u308a\u5408\u308f\u305b\u305f\u4e09\u89d2\u5f62\u306e\u9762\u7a4d\u304c [latex]\\quicklatex{size=20}\\frac{1+\\sqrt{3}}{2}[\/latex] \u3067\u3042\u308b\u3053\u3068\u3092\u5229\u7528\u3059\u308b\u3002<br \/>\n\u3053\u308c\u306f\u3001\uff12\u8fba\u306e\u9577\u3055\u304c[latex]\\sqrt{2}[\/latex]cm\u30682cm\u3067\u3001\u305d\u308c\u3092\u631f\u3080\u89d2\u5ea6\u304c105\u00b0\u3067\u3042\u308b\u4e09\u89d2\u5f62\u306e\u9762\u7a4d\u304c [latex]\\quicklatex{size=20}\\frac{1+\\sqrt{3}}{2}[\/latex] \u3067\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u3066\u3044\u308b\u3002<br \/>\n\u3055\u3066\u3001\u6c42\u3081\u3088\u3046\u3068\u3059\u308b\u3001\u25b3AFG\u306f\u30012\u8fba\u304c\u305d\u308c\u305e\u308c[latex]\\sqrt{3}[\/latex]cm\u30681cm\u3067\u3001\u305d\u308c\u3092\u631f\u3080\u89d2\u5ea6\u304c105\u00b0\u306e\u4e09\u89d2\u5f62\u3067\u3042\u308b\u3002<br \/>\n\u3057\u305f\u304c\u3063\u3066\u3001\u25b3AFG\u306e\u9762\u7a4d\u3092\u6c42\u3081\u308b\u305f\u3081\u306b\u306f\u3001\u4e0a\u56f3\u306e\u4e09\u89d2\u5f62\u306e1\u8fba\u3092[latex]\\frac{\\sqrt{3}}{\\sqrt{2}}[\/latex]\u500d\u3001\u4ed6\u306e1\u8fba\u3092[latex]\\frac{1}{2}[\/latex]\u500d\u3057\u3066\u3084\u308c\u3070\u3088\u3044\u3002<br \/>\n\u3059\u306a\u308f\u3061\u3001<br \/>\n\u25b3AFG = [latex]\\quicklatex{size=20}\\frac{1+\\sqrt{3}}{2}*\\frac{\\sqrt{3}}{\\sqrt{2}}*\\frac{1}{2}=\\frac{3+\\sqrt{3}}{4\\sqrt{2}}=\\frac{3\\sqrt{2}+\\sqrt{6}}{8}[\/latex]\n<p style=\"color: blue;\">\uff08\u85e4\u5cf6\u30b3\u30e1\u30f3\u30c8\uff1a\u9bae\u3084\u304b\u3002\u6050\u308c\u5165\u308a\u307e\u3057\u305f\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p><img src='http:\/\/fujishima.main.jp\/image\/chochin_1_q.png' style=\"width:240px;height:270px;\" alt='\u56f3\u5f62\u554f\u984c(1)' \/><\/p>\n<p>\u4e0a\u56f3\u3067\u3001\u25b3\uff21\uff22\uff23\u3068\u25b3\uff21\uff24\uff25\u306f\u3068\u3082\u306b\u6b63\u4e09\u89d2\u5f62\u3067\u3001\uff26\u3001\uff27\u306f\u305d\u308c\u305e\u308c\u8fba\uff22\uff23\u3001\uff25\uff24\u306e\u4e2d\u70b9\u3067\u3042\u308b\u3002\u2220\uff24\uff21\uff23\uff1d\uff14\uff15\u00b0\u306e\u3068\u304d\u3001\u25b3\uff21\uff26\uff27\u306e\u9762\u7a4d\u306f\u4f55\uff43\uff4d2\u304b\u3002<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[167],"tags":[88],"class_list":["post-127","post","type-post","status-publish","format-standard","hentry","category-diagram_etc","tag-88"],"views":1551,"_links":{"self":[{"href":"http:\/\/fujishima.main.jp\/oldpuzzle\/wp-json\/wp\/v2\/posts\/127","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/fujishima.main.jp\/oldpuzzle\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/fujishima.main.jp\/oldpuzzle\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/fujishima.main.jp\/oldpuzzle\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/fujishima.main.jp\/oldpuzzle\/wp-json\/wp\/v2\/comments?post=127"}],"version-history":[{"count":0,"href":"http:\/\/fujishima.main.jp\/oldpuzzle\/wp-json\/wp\/v2\/posts\/127\/revisions"}],"wp:attachment":[{"href":"http:\/\/fujishima.main.jp\/oldpuzzle\/wp-json\/wp\/v2\/media?parent=127"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/fujishima.main.jp\/oldpuzzle\/wp-json\/wp\/v2\/categories?post=127"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/fujishima.main.jp\/oldpuzzle\/wp-json\/wp\/v2\/tags?post=127"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}