{"id":3068,"date":"2020-12-30T20:56:29","date_gmt":"2020-12-30T11:56:29","guid":{"rendered":"https:\/\/hatsudy.com\/jp\/?p=3068"},"modified":"2022-07-14T00:40:38","modified_gmt":"2022-07-13T15:40:38","slug":"polygon","status":"publish","type":"post","link":"https:\/\/hatsudy.com\/jp\/polygon.html","title":{"rendered":"\u591a\u89d2\u5f62\u306e\u5185\u89d2\u306e\u548c\u3068\u5916\u89d2\u306e\u548c\uff1a\u4e09\u89d2\u5f62\u3084\u56db\u89d2\u5f62\u3001\u4e94\u89d2\u5f62\u306e\u89d2\u5ea6"},"content":{"rendered":"\n<p>\u4e09\u89d2\u5f62\u306e\u5185\u89d2\u3092\u5408\u8a08\u3059\u308b\u3068180\u00b0\u306b\u306a\u308b\u306e\u306f\u3001\u591a\u304f\u306e\u4eba\u304c\u77e5\u3063\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u3067\u306f\u3001\u306a\u305c\u4e09\u89d2\u5f62\u306e\u5185\u89d2\u306e\u548c\u306f180\u00b0\u306b\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>\u307e\u305f\u3001\u56f3\u5f62\u306f\u4e09\u89d2\u5f62\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u56db\u89d2\u5f62\u3084\u4e94\u89d2\u5f62\u3001\u516d\u89d2\u5f62\u306a\u3069\u3068\u7121\u6570\u306b\u56f3\u5f62\u304c\u5b58\u5728\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u3092\u591a\u89d2\u5f62\u3068\u3044\u3044\u307e\u3059\u3002\u305d\u308c\u3067\u306f\u3001\u591a\u89d2\u5f62\u3060\u3068\u5185\u89d2\u306e\u548c\u306f\u3069\u306e\u3088\u3046\u306b\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u3053\u308c\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u305d\u308c\u305e\u308c\u306e\u89d2\u5ea6\u3092\u8a08\u7b97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u5185\u89d2\u3092\u5b66\u3093\u3060\u3042\u3068\u3001\u5916\u89d2\u306b\u3064\u3044\u3066\u3082\u7406\u89e3\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002\u5916\u89d2\u306e\u6027\u8cea\u3092\u5b66\u3076\u3053\u3068\u3067\u3001\u591a\u89d2\u5f62\u306e\u89d2\u5ea6\u3092\u51fa\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u3053\u3067\u4e09\u89d2\u5f62\u3084\u56db\u89d2\u5f62\u3001\u4e94\u89d2\u5f62\u3092\u542b\u3081\u3001\u591a\u89d2\u5f62\u306e\u5185\u89d2\u306e\u548c\u3068\u5916\u89d2\u306e\u548c\u304c\u3069\u306e\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u304b\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h2>\u4e09\u89d2\u5f62\u306e\u5185\u89d2\u306e\u548c\u304c180\u00b0\u306b\u306a\u308b\u8a3c\u660e<\/h2>\n<p>\u6700\u3082\u91cd\u8981\u306a\u56f3\u5f62\u306e\u4e00\u3064\u304c\u4e09\u89d2\u5f62\u3067\u3059\u3002\u4e09\u89d2\u5f62\u3067\u306f\u3001\u5185\u89d2\u306e\u548c\u306f180\u00b0\u306b\u306a\u308a\u307e\u3059\u3002\u306a\u305c\u3001\u4e09\u89d2\u5f62\u306e\u5185\u89d2\u3092\u3059\u3079\u3066\u8db3\u3059\u3068180\u00b0\u306b\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u3053\u306e\u8a3c\u660e\u3092\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><span style=\"color: #0000ff;\">\u5185\u89d2\u306e\u548c\u304c180\u00b0\u306b\u306a\u308b\u3053\u3068\u3092\u8a3c\u660e\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u540c\u4f4d\u89d2\u3068\u932f\u89d2\u3092\u7406\u89e3\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002<\/span>2\u3064\u306e\u7dda\u304c\u5e73\u884c\u306a\u5834\u5408\u3001\u540c\u4f4d\u89d2\u306f\u7b49\u3057\u3044\u3067\u3059\u3002\u307e\u305f2\u3064\u306e\u7dda\u304c\u5e73\u884c\u306a\u5834\u5408\u3001\u932f\u89d2\u306f\u7b49\u3057\u3044\u3067\u3059\u3002\u3053\u306e\u6027\u8cea\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4e09\u89d2\u5f62\u306e\u5185\u89d2\u306e\u548c\u304c180\u00b0\u306b\u306a\u308b\u3053\u3068\u3092\u8a3c\u660e\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3045\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/fdhr6.jpg\" alt=\"\" width=\"518\" height=\"197\" \/><\/p>\n<p>\u307e\u305a\u3001\u4e09\u89d2\u5f62\u306b\u5bfe\u3057\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5e73\u884c\u306a\u7dda\u3092\u5f15\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3079\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/ykjd15-1.jpg\" alt=\"\" width=\"600\" height=\"184\" \/><\/p>\n<p>\u305d\u3046\u3059\u308b\u3068\u3001\u3069\u3046\u306a\u308b\u3067\u3057\u3087\u3046\u304b\u3002\u540c\u4f4d\u89d2\u306f\u7b49\u3057\u3044\u305f\u3081\u3001\u2220b\u3068\u2220b&#8217;\u306e\u89d2\u5ea6\u306f\u540c\u3058\u3067\u3059\u3002\u307e\u305f\u932f\u89d2\u306f\u7b49\u3057\u3044\u305f\u3081\u3001\u2220c\u3068\u2220c&#8217;\u306e\u89d2\u5ea6\u306f\u540c\u3058\u3067\u3059\u3002<\/p>\n<p>\u305d\u306e\u305f\u3081<span style=\"color: #0000ff;\">\u2220a\u3001\u2220b\u3001\u2220c\u306e3\u3064\u3092\u5408\u8a08\u3059\u308b\u3068\u3001\u56f3\u306e\u3088\u3046\u306b\u76f4\u7dda\u306b\u306a\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/span>\u76f4\u7dda\u306e\u89d2\u5ea6\u306f180\u00b0\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u4e09\u89d2\u5f62\u306e\u5185\u89d2\u3092\u5408\u8a08\u3059\u308b\u3068180\u00b0\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u3046\u3057\u3066\u3001\u306a\u305c\u4e09\u89d2\u5f62\u306e\u5185\u89d2\u306e\u548c\u304c180\u00b0\u306b\u306a\u308b\u306e\u304b\u8a3c\u660e\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<h3>\u4e09\u89d2\u5f62\u306e\u5185\u89d2\u3068\u5916\u89d2\u306e\u95a2\u4fc2<\/h3>\n<p>\u5148\u307b\u3069\u3001\u4e09\u89d2\u5f62\u306e\u5185\u89d2\u306e\u548c\u304c180\u00b0\u3067\u3042\u308b\u3053\u3068\u3092\u8a3c\u660e\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u8a3c\u660e\u3092\u3059\u308b\u306b\u5f53\u305f\u308a\u3001\u96a3\u308a\u5408\u308f\u306a\u3044\u5185\u89d2\u306e\u548c\u3068\u5916\u89d2\u304c\u7b49\u3057\u3044\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3081\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/eryhs1.jpg\" alt=\"\" width=\"423\" height=\"182\" \/><\/p>\n<p>\u305d\u306e\u305f\u3081<span style=\"color: #ff0000;\">\u4e09\u89d2\u5f62\u306e\u5916\u89d2\u3092\u8a08\u7b97\u3057\u305f\u3044\u5834\u5408\u3001\u5185\u89d2\u3092\u5408\u8a08\u3059\u308c\u3070\u3044\u3044\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/span>\u2220a\u306e\u5916\u89d2\u3092\u8a08\u7b97\u3057\u305f\u3044\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u2220a\u306e\u5916\u89d2 \uff1d \u2220b \uff0b \u2220c<\/li>\n<\/ul>\n<p>\u3053\u306e\u65b9\u6cd5\u3067\u3042\u308c\u3070\u3001\u2220a\u3092\u89d2\u5ea6\u306e\u8a08\u7b97\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u2220a\u306e\u5916\u89d2\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3107\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/erer6.jpg\" alt=\"\" width=\"483\" height=\"180\" \/><\/p>\n<p>\u3082\u3061\u308d\u3093\u5185\u89d2\u3092\u8a08\u7b97\u3057\u305f\u5f8c\u3001\u5916\u89d2\u3092\u51fa\u3057\u3066\u3082\u3044\u3044\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u3066\u2220a\u306e\u5916\u89d2\u3092130\u00b0\u3068\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u2220a \uff1d 180 \uff0d \uff0870 \uff0b 60\uff09 \uff1d 50<\/li>\n<li>\u2220a\u306e\u5916\u89d2 \uff1d 180 \uff0d 50 \uff1d 130<\/li>\n<\/ul>\n<p>\u305f\u3060\u3001\u3053\u306e\u65b9\u6cd5\u3060\u3068\u8a08\u7b97\u5f0f\u304c\u5897\u3048\u307e\u3059\u3002\u3082\u3061\u308d\u3093\u8a08\u7b97\u30df\u30b9\u306f\u591a\u304f\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u30012\u3064\u306e\u5185\u89d2\u3092\u5408\u8a08\u3057\u3066\u2220a\u306e\u5916\u89d2\u3092\u51fa\u3059\u307b\u3046\u304c\u7c21\u5358\u3067\u3059\u3002<\/p>\n<h2>\u56db\u89d2\u5f62\u3084\u4e94\u89d2\u5f62\u306e\u5185\u89d2\u306e\u548c<\/h2>\n<p>\u305d\u308c\u3067\u306f\u4e09\u89d2\u5f62\u3067\u306f\u306a\u304f\u3001\u56db\u89d2\u5f62\u3084\u4e94\u89d2\u5f62\u306e\u3088\u3046\u306b\u3001\u591a\u304f\u306e\u8fba\u3092\u3082\u3064\u56f3\u5f62\u306f\u3069\u306e\u3088\u3046\u306b\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u5185\u89d2\u306e\u548c\u306f\u3044\u304f\u3089\u306b\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>\u591a\u89d2\u5f62\u306e\u5185\u89d2\u306e\u548c\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5897\u3048\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u4e09\u89d2\u5f62\uff1a\u5185\u89d2\u306e\u548c\u306f180\u00b0<\/li>\n<li>\u56db\u89d2\u5f62\uff1a\u5185\u89d2\u306e\u548c\u306f360\u00b0<\/li>\n<li>\u4e94\u89d2\u5f62\uff1a\u5185\u89d2\u306e\u548c\u306f540\u00b0<\/li>\n<li>\u516d\u89d2\u5f62\uff1a\u5185\u89d2\u306e\u548c\u306f720\u00b0<\/li>\n<\/ul>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001<span style=\"color: #0000ff;\">\u591a\u89d2\u5f62\u3067\u306f\u8fba\u304c\u4e00\u3064\u5897\u3048\u308b\u3054\u3068\u306b\u5185\u89d2\u306e\u548c\u306f180\u5897\u52a0\u3057\u307e\u3059\u3002<\/span>\u3053\u306e\u6cd5\u5247\u304b\u3089\u3001\u591a\u89d2\u5f62\u306e\u89d2\u5ea6\u3092\u8a08\u7b97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u8fba\u304c\u5897\u3048\u308b\u3054\u3068\u306b\u5185\u89d2\u306e\u548c\u304c180\u00b0\u5897\u3048\u308b\u7406\u7531<\/h3>\n<p>\u306a\u305c\u3001\u8fba\u304c\u4e00\u3064\u5897\u3048\u308b\u3068\u5185\u89d2\u306e\u548c\u304c180\u00b0\u305a\u3064\u5897\u3048\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u3053\u306e\u7406\u7531\u306b\u3064\u3044\u3066\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002\u3053\u308c\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u4e09\u89d2\u5f62\u306e\u5185\u89d2\u306e\u5408\u8a08\u304c180\u00b0\u3067\u3042\u308b\u3053\u3068\u3092\u77e5\u3063\u3066\u3044\u308c\u3070\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u4f8b\u3068\u3057\u3066\u3001\u56db\u89d2\u5f62\u306e\u5185\u89d2\u306e\u548c\u3092\u8003\u3048\u307e\u3057\u3087\u3046\u3002\u56db\u89d2\u5f62\u306b\u5bfe\u89d2\u7dda\u3092\u5f15\u304f\u3068\u3001\u4e09\u89d2\u5f62\u30922\u3064\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3086\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/eryhs4.jpg\" alt=\"\" width=\"319\" height=\"217\" \/><\/p>\n<p>\u5f53\u7136\u306a\u304c\u3089\u3001<span style=\"color: #0000ff;\">2\u3064\u306e\u4e09\u89d2\u5f62\u306e\u5185\u89d2\u3092\u3059\u3079\u3066\u8db3\u3059\u3068\u3001\u56db\u89d2\u5f62\u306e\u5185\u89d2\u306e\u548c\u306b\u306a\u308a\u307e\u3059\u3002<\/span>\u56db\u89d2\u5f62\u306e\u5185\u89d2\u306e\u548c\u306f\u3001\u25cf\u3068\u25a0\u3092\u3059\u3079\u3066\u8db3\u3057\u305f\u6570\u5b57\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u65e2\u306b\u77e5\u3063\u3066\u3044\u308b\u901a\u308a\u3001\u4e09\u89d2\u5f62\u306e\u5408\u8a08\u306f180\u00b0\u3067\u3059\u3002\u3064\u307e\u308a\u3001\u25cf\u3092\u3059\u3079\u3066\u8db3\u3059\u3068180\u00b0\u3067\u3059\u3002\u25a0\u3092\u3059\u3079\u3066\u8db3\u3059\u3068180\u00b0\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u56db\u89d2\u5f62\u306e\u5185\u89d2\u306e\u548c\u306f360\u00b0\u3060\u3068\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u540c\u3058\u3088\u3046\u306b\u3001\u4e94\u89d2\u5f62\u3084\u516d\u89d2\u5f62\u306b\u3064\u3044\u3066\u3082\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5bfe\u89d2\u7dda\u3092\u5f15\u3044\u3066\u4e09\u89d2\u5f62\u3092\u4f5c\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3087\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/eryhs5.jpg\" alt=\"\" width=\"600\" height=\"181\" \/><\/p>\n<p>\u305d\u3046\u3059\u308b\u3068\u3001\u4e94\u89d2\u5f62\u3067\u306f3\u3064\u306e\u4e09\u89d2\u5f62\u3092\u4f5c\u308c\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5408\u8a08\u3057\u3066540\u00b0\u3067\u3059\u3002\u307e\u305f\u516d\u89d2\u5f62\u3067\u306f\u30014\u3064\u306e\u4e09\u89d2\u5f62\u3092\u4f5c\u308c\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5408\u8a08\u3057\u3066720\u00b0\u3067\u3059\u3002\u4e09\u89d2\u5f62\u306e\u6027\u8cea\u3092\u5229\u7528\u3059\u308c\u3070\u3001\u306a\u305c180\u00b0\u305a\u3064\u5897\u3048\u308b\u306e\u304b\u7406\u7531\u3092\u7406\u89e3\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u591a\u89d2\u5f62\u306b\u3064\u3044\u3066\u3001\u5185\u89d2\u306e\u548c\u304c\u3044\u304f\u3089\u306b\u306a\u308b\u306e\u304b\u5fd8\u308c\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u305d\u3046\u3057\u305f\u3068\u304d\u3001\u3053\u306e\u3088\u3046\u306b\u5bfe\u89d2\u7dda\u3092\u5f15\u304f\u3053\u3068\u3067\u4e09\u89d2\u5f62\u3092\u4f55\u500b\u4f5c\u308c\u308b\u306e\u304b\u8003\u3048\u307e\u3057\u3087\u3046\u3002\u305d\u306e\u5f8c\u3001\u4e09\u89d2\u5f62\u306e\u6570\u3068180\u3092\u639b\u3051\u308b\u3053\u3068\u3067\u3001\u5185\u89d2\u306e\u548c\u306e\u5408\u8a08\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u591a\u89d2\u5f62\u306e\u5916\u89d2\u306e\u548c\u306f\u3059\u3079\u3066360\u00b0<\/h3>\n<p>\u3053\u3053\u307e\u3067\u3001\u591a\u89d2\u5f62\u306e\u5185\u89d2\u306e\u548c\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u4e00\u65b9\u3067\u591a\u89d2\u5f62\u306e\u5916\u89d2\u306e\u548c\u306f\u3069\u306e\u3088\u3046\u306b\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u4e09\u89d2\u5f62\u3084\u56db\u89d2\u5f62\u3001\u4e94\u89d2\u5f62\u306e\u5916\u89d2\u306e\u548c\u304c\u3069\u306e\u3088\u3046\u306b\u306a\u308b\u306e\u304b\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002\u306a\u304a\u3001\u5916\u89d2\u3068\u306f\u4ee5\u4e0b\u306e\u90e8\u5206\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3088\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/eryhs6.jpg\" alt=\"\" width=\"410\" height=\"240\" \/><\/p>\n<p>\u305d\u3046\u3057\u305f\u3068\u304d<span style=\"color: #ff0000;\">\u5916\u89d2\u306e\u548c\u306b\u3064\u3044\u3066\u306f\u3001\u3059\u3079\u3066\u306e\u591a\u89d2\u5f62\u3067360\u00b0\u3067\u3059\u3002<\/span>\u4e09\u89d2\u5f62\u3084\u56db\u89d2\u5f62\u3001\u4e94\u89d2\u5f62\u3068\u5916\u89d2\u306e\u548c\u306f\u3069\u308c\u3082360\u00b0\u3067\u3059\u3002<\/p>\n<p>\u306a\u305c\u3001\u3059\u3079\u3066\u306e\u591a\u89d2\u5f62\u3067\u5916\u89d2\u306e\u548c\u304c360\u00b0\u306b\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u3053\u306e\u7406\u7531\u306b\u3064\u3044\u3066\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u3053\u306e\u7406\u7531\u3092\u8a3c\u660e\u3059\u308b\u3068\u304d\u3001\u591a\u89d2\u5f62\u306e\u5185\u89d2\u306e\u548c\u3092\u51fa\u3059\u305f\u3081\u306e\u516c\u5f0f\u3092\u4f5c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u304a\u3055\u3089\u3044\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u4e09\u89d2\u5f62\uff1a\u5185\u89d2\u306e\u548c\u306f180\u00b0<\/li>\n<li>\u56db\u89d2\u5f62\uff1a\u5185\u89d2\u306e\u548c\u306f360\u00b0<\/li>\n<li>\u4e94\u89d2\u5f62\uff1a\u5185\u89d2\u306e\u548c\u306f540\u00b0<\/li>\n<li>\u516d\u89d2\u5f62\uff1a\u5185\u89d2\u306e\u548c\u306f720\u00b0<\/li>\n<\/ul>\n<p>\u3053\u3053\u304b\u3089\u3001n\u500b\u306e\u8fba\u304c\u3042\u308b\u591a\u89d2\u5f62\u306e\u5185\u89d2\u306e\u548c\u306f\u4ee5\u4e0b\u306e\u516c\u5f0f\u306b\u306a\u308b\u3068\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u5185\u89d2\u306e\u548c\u306e\u5408\u8a08\uff1a\\((n-2)\u00d7180\\)<\/li>\n<\/ul>\n<p>\u307e\u305f\u591a\u89d2\u5f62\u306b\u3064\u3044\u3066\u30011\u3064\u306e\u5185\u89d2\u30681\u3064\u306e\u5916\u89d2\u3092\u8db3\u3059\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b180\u00b0\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3089\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/eryhs8.jpg\" alt=\"\" width=\"417\" height=\"465\" \/><\/p>\n<p>\u8fba\u304cn\u500b\u3042\u308b\u591a\u89d2\u5f62\u306e\u5834\u5408\u3001\u5185\u89d2\u3068\u5916\u89d2\u3092\u3059\u3079\u3066\u5408\u8a08\u3059\u308b\u3068\\(180\u00d7n\\)\u306b\u306a\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002\u305d\u3053\u3067\u3001\u300c\u5185\u89d2\u3068\u5916\u89d2\u306e\u5408\u8a08\u300d\u304b\u3089\u3001\u5185\u89d2\u306e\u548c\u3092\u5f15\u304d\u307e\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3090\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/eryhs10.jpg\" alt=\"\" width=\"600\" height=\"238\" \/><\/p>\n<p>\u3053\u3046\u3057\u3066\u3001<span style=\"color: #0000ff;\">\u3059\u3079\u3066\u306e\u591a\u89d2\u5f62\u306b\u304a\u3044\u3066\u3001\u5916\u89d2\u306e\u548c\u306f\u5fc5\u305a360\u00b0\u306b\u306a\u308b\u3068\u8a3c\u660e\u3067\u304d\u307e\u3057\u305f\u3002<\/span>\u5185\u89d2\u306e\u548c\u306f\u5909\u5316\u3059\u308b\u3082\u306e\u306e\u3001\u5916\u89d2\u306e\u548c\u306f360\u00b0\u3067\u4e00\u5b9a\u3067\u3059\u3002<\/p>\n<h2>\u7df4\u7fd2\u554f\u984c\uff1a\u591a\u89d2\u5f62\u306e\u89d2\u5ea6\u3092\u8a08\u7b97\u3059\u308b<\/h2>\n<p><strong>Q1.<\/strong> \u6b21\u306e\u89d2\u5ea6\u3092\u7b54\u3048\u307e\u3057\u3087\u3046<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3091\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/eryhs11.jpg\" alt=\"\" width=\"600\" height=\"232\" \/><\/p>\n<p><strong>A1<\/strong>. \u89e3\u7b54<\/p>\n<p><strong>(a)<\/strong><\/p>\n<p>\u4e09\u89d2\u5f62\u306e\u5185\u89d2\u306e\u5408\u8a08\u304c180\u00b0\u306b\u306a\u308b\u3053\u3068\u3092\u77e5\u3063\u3066\u3044\u308c\u3070\u3001\u2220a\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7b54\u3048\u306e\u5c0e\u304d\u51fa\u3057\u65b9\u306f2\u3064\u3042\u308a\u307e\u3059\u3002\u4e00\u3064\u306f\u3001\u4ee5\u4e0b\u306e\u4e09\u89d2\u5f62\u306b\u7740\u76ee\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3092\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/eryhs12.jpg\" alt=\"\" width=\"323\" height=\"277\" \/><\/p>\n<p>2\u3064\u306e\u5185\u89d2\u3092\u8db3\u3059\u3068\u3001\u5916\u89d2\u306b\u306a\u308b\u3053\u3068\u306f\u65e2\u306b\u8aac\u660e\u3057\u307e\u3057\u305f\u3002\u305d\u306e\u305f\u3081\u30aa\u30ec\u30f3\u30b8\u8272\u306e\u89d2\u306b\u3064\u3044\u3066\u3001\u89d2\u5ea6\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b70\u00b0\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(40+30=70\\)<\/li>\n<\/ul>\n<p>\u307e\u305f\u3001\u2220a\u306f\u4e09\u89d2\u5f62\u306e\u5916\u89d2\u3067\u3082\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5148\u307b\u3069\u8a08\u7b97\u3057\u305f\u89d2\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u2220a\u306f120\u00b0\u3068\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(\u2220a=70+50=120\\)<\/li>\n<\/ul>\n<p>\u53c2\u8003\u307e\u3067\u306b\u3001\u5225\u306e\u4e09\u89d2\u5f62\u306b\u7740\u76ee\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3082\u89d2\u5ea6\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u4e09\u89d2\u5f62\u306b\u7740\u76ee\u3057\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3093\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/eryhs13.jpg\" alt=\"\" width=\"323\" height=\"277\" \/><\/p>\n<p>\u3053\u306e\u5834\u5408\u3001\u7dd1\u8272\u306e\u89d2\u5ea6\uff08\u4e09\u89d2\u5f62\u306e\u5916\u89d2\uff09\u306f90\u00b0\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u2220a\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b120\u00b0\u3067\u3059\u3002<\/p>\n<ul>\n<li>\\(\u2220a=90+30=120\\)<\/li>\n<\/ul>\n<p>\u6700\u7d42\u7684\u306a\u7b54\u3048\u306f\u540c\u3058\u3067\u3059\u3002\u3069\u3061\u3089\u306e\u65b9\u6cd5\u3067\u8a08\u7b97\u3057\u3066\u3082\u554f\u984c\u306a\u304f\u3001\u8a08\u7b97\u3057\u3084\u3059\u3044\u65b9\u3067\u7b54\u3048\u3092\u51fa\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>(b)<\/strong><\/p>\n<p>\u56f3\u5f62\u306e\u554f\u984c\u3067\u306f\u3001\u554f\u984c\u6587\u3060\u3051\u3067\u306f\u7b54\u3048\u3089\u308c\u306a\u3044\u30b1\u30fc\u30b9\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u3001\u7dda\u3092\u5f15\u304f\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<span style=\"color: #ff0000;\">\u7dda\u3092\u5f15\u304b\u306a\u3051\u308c\u3070\u3001\u7b54\u3048\u3092\u51fa\u305b\u306a\u3044\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/span>\u3053\u306e\u554f\u984c\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u7dda\u3092\u5f15\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3094\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/eryhs14.jpg\" alt=\"\" width=\"338\" height=\"288\" 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