{"id":25,"date":"2016-10-14T17:08:07","date_gmt":"2016-10-14T08:08:07","guid":{"rendered":"https:\/\/koukou-juken.com\/?p=25"},"modified":"2016-10-14T17:08:07","modified_gmt":"2016-10-14T08:08:07","slug":"math-koushiki","status":"publish","type":"post","link":"https:\/\/koukou-juken.valleyin.cloud\/?p=25","title":{"rendered":"\u3010\u521d\u5fc3\u8005\u5fc5\u898b\u3011\u7d76\u5bfe\u306b\u5fc5\u8981\u306a\u91cd\u8981\u4e2d\u5b66\u6570\u5b66\u306e10\u306e\u516c\u5f0f\u307e\u3068\u3081"},"content":{"rendered":"

\u4e2d\u5b66\u6570\u5b66\u3067\u306f\u3001\u7b97\u6570\u3068\u9055\u3044\u516c\u5f0f\u3092\u899a\u3048\u3066\u8a08\u7b97\u3092\u30e9\u30af\u306b\u901f\u304f\u3057\u3066\u3044\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u6559\u79d1\u66f8\u306b\u306f\u305f\u304f\u3055\u3093\u306e\u516c\u5f0f\u304c\u66f8\u3044\u3066\u3042\u308b\u3057\u3001\u6559\u79d1\u66f8\u306f\u5358\u5143\u3054\u3068\u306b\u305a\u3089\u305a\u3089\u3068\u6587\u7ae0\u3068\u516c\u5f0f\u304c\u66f8\u3044\u3066\u3042\u308b\u3060\u3051\u306a\u306e\u3067\u3001\u6b63\u76f4\u308f\u304b\u308a\u306b\u304f\u3044\u3068\u3053\u308d\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u4f55\u304c\u5927\u4e8b\u3067\u3069\u308c\u3092\u512a\u5148\u3057\u305f\u3089\u3044\u3044\u306e\u304b\u308f\u304b\u3089\u306a\u3044\uff01\u7d50\u5c40\u3069\u308c\u5148\u306b\u899a\u3048\u305f\u3089\u826f\u3044\u306e\uff1f\u3068\u3044\u3046\u65b9\u5411\u3051\u306b\u6570\u3092\u7d5e\u3063\u3066\u7d39\u4ecb\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n

<\/p>\n

\u4e09\u5e73\u65b9\u306e\u5b9a\u7406<\/h2>\n

 <\/p>\n

\"%e5%9b%b33\"<\/p>\n

\u25b3ABC\u3067\u3001\u2220C = 90\u00b0\u306e\u3068\u304d\u3001<\/p>\n

[mathjax]$$\\begin{eqnarray*}
\n &&{\\Large\u00a0\u00a0a^2 +b^2=c^2}\u00a0\\\\
\n \\end{eqnarray*}$$<\/p>\n

\u307e\u305f\u3001\u305d\u306e\u9006\u3082\u6210\u308a\u7acb\u3064\u3002\uff08\u25b3ABC\u3067\u3001\u4e0a\u306e\u5f0f\u304c\u6210\u308a\u7acb\u3064\u3068\u304d\u3001\u2220C = 90\u00b0 )<\/p>\n

\u3053\u306e\u516c\u5f0f\u306f\u56f3\u5f62\u554f\u984c\u3067\u306f\u3082\u3061\u308d\u3093\u3001\u30b0\u30e9\u30d5\u3092\u7528\u3044\u305f\u554f\u984c\u3067\u3082\u5927\u6d3b\u8e8d\u3057\u307e\u3059\u3002<\/p>\n

 <\/p>\n

\u56e0\u6570\u5206\u89e3<\/h2>\n

\u4e0b\u306e\uff14\u3064\u306e\u516c\u5f0f\u306f\u56e0\u6570\u5206\u89e3\u306e\u554f\u984c\u3092\u89e3\u304f\u305f\u3081\u306b\u306f\u6b20\u304b\u305b\u307e\u305b\u3093\u3002\u52a0\u3048\u3066\u5f0f\u3092\u5c55\u958b\u3059\u308b\u3068\u304d\u306b\u3082\u5927\u5e45\u306a\u6642\u9593\u7bc0\u7d04\u306b\u306a\u308b\u306e\u3067\u3001\u78ba\u5b9f\u306b\u899a\u3048\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\uff01<\/p>\n

[mathjax]$$\\begin{eqnarray*}
\n && {\\Large a^2-b^2=(a+b)(a-b)}\u00a0\u00a0\\\\
\n &&\u00a0{\\Large a^2+2ab+b^2=(a+b)^2}\u00a0\\\\\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 &&\u00a0{ \\Large a^2-2ab+b^2=(a-b)^2} \\\\\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 &&{ \\Large \u00a0x^2+(a+b)x+ab=(x+a)(x+b)}
\n \\end{eqnarray*}$$<\/p>\n

 <\/p>\n

\u4e2d\u70b9\u306e\u5ea7\u6a19<\/h2>\n

\"2-2\"<\/p>\n

[mathjax]$$\\begin{eqnarray*}
\n &&{\\Large A(x_1,y_1)\u3001B(x_2,y_2)\u306e\u4e2d\u70b9\u306e\u5ea7\u6a19M\u306f\u3001M(\\frac{x_1+x_2}{2},\\frac{y_1+y_2}{2}) }\\\\
\n \\end{eqnarray*}$$<\/p>\n

 <\/p>\n

\u4e2d\u70b9\u9023\u7d50\u5b9a\u7406<\/h2>\n

\"2-3\"\u25b3ABC\u306b\u304a\u3044\u3066\u3001AB\u3001AC\u306e\u4e2d\u70b9\u3092\u305d\u308c\u305e\u308cM\u3001N\u3068\u3059\u308b\u3068\u6b21\u306e\u4e8c\u3064\u306e\u6761\u4ef6\u304c\u6210\u308a\u7acb\u3064\u3002<\/p>\n

[mathjax]$$\\begin{eqnarray*}
\n &&{\\Large MN \\parallel BC\u00a0\uff08\u7dda\u5206MN\u3068\u7dda\u5206BC\u306f\u5e73\u884c\uff09} \\\\\u3000\u3000\u3000\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u3000\u3000\u3000\u3000&&{ \\Large MN=\\frac{1}{2}BC }\\
\n \\end{eqnarray*}$$<\/p>\n

\u4e09\u89d2\u5f62\u306e\u8fba\u306e\u4e2d\u306b\u4e8c\u3064\u4e2d\u70b9\u304c\u51fa\u3066\u304d\u305f\u3089\u3001\u3068\u308a\u3042\u3048\u305a\u305d\u308c\u3089\u3092\u88dc\u52a9\u7dda\u3067\u7d50\u3093\u3067\u307f\u307e\u3057\u3087\u3046\uff01<\/p>\n

\u89e3\u306e\u516c\u5f0f<\/h2>\n

[mathjax]$$\\begin{eqnarray*}
\n &&{ \\Large ax^2+bx+c=0 \u306e\u89e3\u306f x=\\frac{-b \\pm \\sqrt{b^2-4ac}}{2a} } \\\\
\n \\end{eqnarray*}$$<\/p>\n

\u3053\u306e\u5f0f\u3092\u4f7f\u3048\u3070\u3069\u3093\u306a\u4e8c\u6b21\u65b9\u7a0b\u5f0f\u3082\u89e3\u3051\u308b\u3068\u3044\u3046\u4e07\u80fd\u306a\u5f0f\u3067\u3059\u3002\u6697\u5531\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n

\u4e8c\u6b21\u65b9\u7a0b\u5f0f\u306e\u554f\u984c\u3092\u898b\u305f\u3068\u304d\u306b\u306f\u3058\u3081\u306f\u56e0\u6570\u5206\u89e3\u3067\u304d\u306a\u3044\u304b\u8003\u3048\u308b\u3053\u3068\u304c\u6700\u512a\u5148\u3067\u3059\u304c\u3001\u56e0\u6570\u5206\u89e3\u3067\u304d\u306a\u3044or\u56e0\u6570\u5206\u89e3\u304c\u601d\u3044\u3064\u304b\u306a\u3044\u5834\u5408\u306f\u3053\u306e\u516c\u5f0f\u3092\u4f7f\u3048\u3070\u5fc5\u305a<\/strong>\u89e3\u3051\u307e\u3059\u3002<\/p>\n

 <\/p>\n

\u89d2\u306e\u4e8c\u7b49\u5206\u7dda\u306e\u5b9a\u7406<\/h2>\n

\n \"2-4\"<\/p>\n

\u25b3ABC\u306b\u304a\u3044\u3066[mathjax]$$\\begin{eqnarray*}
\n &&{ \\Large \u00a0\\angle BAD=\\angle CAD \u306e\u3068\u304dAB:AC=BD:DC } \\\\
\n \\end{eqnarray*}$$<\/p>\n

\u3053\u306e\u516c\u5f0f\u306f\u5e73\u9762\u56f3\u5f62\u306e\u554f\u984c\u3092\u89e3\u304f\u969b\u306b\u3068\u3066\u3082\u6d3b\u8e8d\u3057\u307e\u3059\u3002\u300c\u4e8c\u7b49\u5206\u7dda\u300d\u3068\u3044\u3046\u30ef\u30fc\u30c9\u304c\u51fa\u3066\u304d\u305f\u3089\u3001\u3053\u306e\u516c\u5f0f\u3092\u4f7f\u3046\u306e\u3067\u306f\uff1f\u3068\u601d\u3063\u3066\u3044\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n

\u9310\u4f53\u306e\u4f53\u7a4d<\/h2>\n

\"2-5\"<\/p>\n

\u5186\u9310\u306b\u3064\u3044\u3066\u3001\u5e95\u9762\u306e\u5186\u306e\u534a\u5f84\u3092\uff52\u3001\u9ad8\u3055\u3092\uff48\u3068\u3059\u308b\u3068\u3001\u305d\u306e\u5186\u9310\u306e\u4f53\u7a4dV\u306f\u3001[mathjax]$$\\begin{eqnarray*}
\n &&{\\Large V=\\frac{1}{3}\\pi r^2 h} \\
\n \\end{eqnarray*}$$<\/p>\n

1\/3\u3092\u639b\u3051\u308b\u306e\u3092\u5fd8\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\uff01<\/p>\n

\u7403\u306e\u516c\u5f0f\uff08\u8868\u9762\u7a4d\u3001\u4f53\u7a4d\uff09<\/h2>\n

\"2-6\"<\/p>\n

\u7403\u306b\u3064\u3044\u3066\u3001\u305d\u306e\u534a\u5f84\u3092r\u3068\u3059\u308b\u3068\u3001\u305d\u306e\u8868\u9762\u7a4dS\u306f[mathjax]$$\\begin{eqnarray*}
\n && {\\Large S=4 \\pi r^2} \\
\n \\end{eqnarray*}$$<\/p>\n

\u305d\u306e\u4f53\u7a4dV\u306f[mathjax]$$\\begin{eqnarray*}
\n &&{ \\Large V=\\frac{4}{3} \\pi r^3} \\
\n \\end{eqnarray*}$$<\/p>\n

\u8868\u9762\u7a4d\u306f\u300c\u5fc3\u914d\u3042\u308b\u4e8b\u60c5\u3001\u5fc3\uff08\uff14\uff09\u914d\uff08\u03c0\uff09\u3042\u308b\uff08r\uff09\u4e8b\u60c5\uff08\uff12\u4e57\uff09<\/strong><\/span>\u300d\u3001\u4f53\u7a4d\u306f\u300c\u8eab\u306e\u4e0a\u306b\u5fc3\u914d\u3042\u308b\u304b\u3089\u53c2\u4e0a\u3001\u8eab\uff08\uff13\uff09\u306e\u4e0a\u306b\u5fc3\uff08\uff14\uff09\u914d\uff08\u03c0\uff09\u3042\u308b\uff08r\uff09\u304b\u3089\u53c2\u4e0a\uff08\uff13\u4e57\uff09<\/span><\/strong>\u300d\u3067\u899a\u3048\u307e\u3057\u3087\u3046\uff01<\/p>\n

 <\/p>\n

\u304a\u3046\u304e\u5f62\u306e\u9762\u7a4d<\/h2>\n

\"2-7\"<\/p>\n

\u534a\u5f84\u306e\u9577\u3055r\u3001\u4e2d\u5fc3\u89d2\u03b1\u00b0\u306e\u304a\u3046\u304e\u5f62\u306e\u9762\u7a4dS\u306f\u3001[mathjax]$$\\begin{eqnarray*}
\n && { \\Large S=\\pi r^2 \\times \\frac{\u03b1}{360} } \\
\n \\end{eqnarray*}$$<\/p>\n

\u3053\u306e\u5f0f\u3067\u3001\u300c\u03c0\u00d7r\u306e2\u4e57\u300d\u306e\u90e8\u5206\u306f\u3054\u5b58\u77e5\u3001\u534a\u5f84r\u306e\u5186\u306e\u9762\u7a4d\u3092\u8868\u3057\u307e\u3059\u3088\u306d\u3002\u304a\u3046\u304e\u5f62\u306f\u5186\u306e\u4e00\u90e8\u3067\u3042\u308a\u3001\u4e2d\u5fc3\u89d2\u03b1\u00b0\u306e\u304a\u3046\u304e\u5f62\u306f\u5186\uff08\uff1d\u4e2d\u5fc3\u89d2360\u00b0\uff09\u306e360\u5206\u306e\u03b1\u306e\u90e8\u5206\u3068\u8003\u3048\u308b<\/strong>\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u306e\u5f8c\u308d\u306b\u304b\u3051\u3066\u3044\u308b\u03b1\/360\u306f\u305d\u306e\u3053\u3068\u3092\u610f\u5473\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

 <\/p>\n

\u307e\u305f\u9762\u7a4d\u306e\u516c\u5f0f\u306b\u306f\u3082\u3046\u4e00\u3064\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3082\u899a\u3048\u3066\u304a\u304f\u3068\u4fbf\u5229\u3067\u3057\u3087\u3046\u3002<\/p>\n

\"2-8\"<\/p>\n

\u534a\u5f84\u306e\u9577\u3055r\u3001\u5f27\u306e\u9577\u3055L\u306e\u304a\u3046\u304e\u5f62\u306e\u9762\u7a4dS\u306f\u3001[mathjax]$$\\begin{eqnarray*}
\n && {\\Large S=\\frac{1}{2} rL}\\
\n \\end{eqnarray*}$$<\/p>\n

\u3053\u306e\u516c\u5f0f\u306f\u304a\u3046\u304e\u5f62\u306e\u4e2d\u5fc3\u89d2\u304c\u4e0e\u3048\u3089\u308c\u3066\u306a\u3044\u3068\u304d\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u3053\u306e\u9577\u3055L\u306f\u3001\u304a\u3046\u304e\u5f62\u306e\u4e2d\u5fc3\u3092\u03b1\u00b0\u3068\u3059\u308b\u3068\u3001[mathjax]$$\\begin{eqnarray*}
\n &&L=2 \\pi r\u00a0 \\times \\frac{\u03b1}{360} \u00a0\\
\n \\end{eqnarray*}$$\u3000\u306a\u306e\u3067\u3001\u3053\u308c\u3092\u4ee3\u5165\u3059\u308b\u3068\u4e00\u3064\u76ee\u306e\u516c\u5f0f\u304c\u5c0e\u3051\u307e\u3059\u3002<\/p>\n

\u5186\u5468\u89d2\u306e\u5b9a\u7406<\/h2>\n

\"%e5%9b%b31\"<\/p>\n

 <\/p>\n

\u70b9O\u3092\u4e2d\u5fc3\u3068\u3059\u308b\u5186\u306e\u5186\u5468\u4e0a\u306b\u4e0a\u56f3\u306e\u3088\u3046\u306b\u70b9A\u3001B\u3001C\u3092\u3068\u308b\u3068\u3001\u4e0b\u306e\u5f0f\u304c\u6210\u308a\u7acb\u3064\u3002[mathjax]$$\\begin{eqnarray*}
\n &&{\\Large \\angle BAC= \\frac {1}{2} \\angle BOC }\\
\n \\end{eqnarray*}$$<\/p>\n

\u3053\u308c\u3092\u5186\u5468\u89d2\u306e\u5b9a\u7406\u3068\u8a00\u3044\u307e\u3059\u3002\u3082\u3061\u308d\u3093\u4e0b\u306e\u3088\u3046\u306b\u70b9\u304c\u3042\u3063\u3066\u3082\u5186\u5468\u89d2\u306e\u5b9a\u7406\u306f\u6210\u308a\u7acb\u3061\u307e\u3059\u3002<\/p>\n

\"%e5%9b%b32\"<\/p>\n

\u5186\u306e\u4e2d\u3067\u89d2\u5ea6\u3092\u6c42\u3081\u308b\u554f\u984c\u3067\u306f\u5fc5\u305a\u4f7f\u3046\u3068\u3044\u3063\u3066\u3082\u3044\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n

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 <\/p>\n

\u4e2d\u5b66\u6570\u5b66\u30fb\u8981\u70b9\u306e\u307e\u3068\u3081<\/a><\/p>\n

\u9ad8\u6821\u5165\u8a66 \u6570\u5b66\u516c\u5f0f\u96c6<\/a>\u3001\u4e2d1\u5206\u91ce<\/a>\u3001\u4e2d2\u5206\u91ce<\/a>\u3001\u4e2d3\u5206\u91ce<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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