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loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2908\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/yliut9.jpg\" alt=\"\" width=\"600\" height=\"284\" 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loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2913\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/shmjt2.jpg\" alt=\"\" width=\"600\" height=\"315\" \/><\/p>\n<p>\u89d2\u67f1\u306e\u5c55\u958b\u56f3\u3067\u306f\u3001\u5074\u9762\u306f\u5fc5\u305a\u9577\u65b9\u5f62\uff08\u307e\u305f\u306f\u6b63\u65b9\u5f62\uff09\u306b\u306a\u308a\u307e\u3059\u3002\u9577\u65b9\u5f62\u306e\u6a2a\u306e\u9577\u3055\u306f\u3001\u89d2\u67f1\u306e\u5468\u308a\u306e\u9577\u3055\u3068\u7b49\u3057\u3044\u3067\u3059\u3002\u4e09\u89d2\u67f1\u3067\u3082\u56db\u89d2\u67f1\u3067\u3082\u3001\u5c55\u958b\u56f3\u306e\u5074\u9762\u306f\u9577\u65b9\u5f62\u306b\u306a\u308b\u305f\u3081\u3001<span style=\"color: #ff0000;\">\u9577\u65b9\u5f62\u306e\u6a2a\u306e\u9577\u3055\u306f\u3001\u89d2\u67f1\u306e\u5468\u308a\u306e\u9577\u3055\u3092\u8db3\u3059\u3053\u3068\u3067\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2914\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/shmjt4.jpg\" alt=\"\" width=\"600\" height=\"296\" \/><\/p>\n<p>\u307e\u305f\u4e09\u89d2\u67f1\u306e\u9ad8\u3055\u306f\u3001\u9577\u65b9\u5f62\u306e\u305f\u3066\u306e\u9577\u3055\u3068\u540c\u3058\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5074\u9762\u306e\u9762\u7a4d\u306f\u4ee5\u4e0b\u306e\u5f0f\u306b\u3088\u3063\u3066\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u5074\u9762\u306e\u9762\u7a4d \uff1d \u89d2\u67f1\u306e\u5468\u308a\u306e\u9577\u3055 \u00d7 \u89d2\u67f1\u306e\u9ad8\u3055<\/li>\n<\/ul>\n<p>\u6b21\u306b\u3001\u5e95\u9762\u7a4d\u3092\u51fa\u3057\u307e\u3059\u3002\u5e95\u9762\u306e\u5f62\u306f\u3001\u3069\u306e\u3088\u3046\u306a\u89d2\u67f1\u306a\u306e\u304b\u306b\u3088\u3063\u3066\u5909\u308f\u308a\u307e\u3059\u3002\u4e09\u89d2\u67f1\u3067\u3042\u308c\u3070\u3001\u5e95\u9762\u306f\u4e09\u89d2\u5f62\u3067\u3059\u3002\u56db\u89d2\u67f1\u3067\u3042\u308c\u3070\u3001\u5e95\u9762\u306f\u56db\u89d2\u5f62\u3067\u3059\u3002\u305d\u3053\u3067\u3001\u305d\u308c\u305e\u308c\u306e\u5e95\u9762\u7a4d\u3092\u8a08\u7b97\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u5186\u67f1\u306e\u5c55\u958b\u56f3\u304b\u3089\u8868\u9762\u7a4d\u3092\u51fa\u3059<\/h3>\n<p>\u305d\u308c\u306b\u5bfe\u3057\u3066\u3001\u5186\u67f1\u306e\u8868\u9762\u7a4d\u306f\u3069\u306e\u3088\u3046\u306b\u8a08\u7b97\u3059\u308c\u3070\u3044\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u89d2\u67f1\u3068\u540c\u3058\u3088\u3046\u306b\u3001\u5186\u67f1\u306e\u5c55\u958b\u56f3\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u5186\u67f1\u306e\u5c55\u958b\u56f3\u306f\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-2915\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/shmjt5.jpg\" alt=\"\" width=\"600\" height=\"371\" \/><\/p>\n<p>\u5186\u67f1\u306e\u9ad8\u3055\u306f\u3001\u5c55\u958b\u56f3\u3067\u3044\u3046\u9577\u65b9\u5f62\u306e\u305f\u3066\u306e\u9577\u3055\u3068\u540c\u3058\u3067\u3059\u3002\u3064\u307e\u308a\u9577\u65b9\u5f62\u306e\u305f\u3066\u306e\u9577\u3055\u306b\u3064\u3044\u3066\u306f\u3001\u89d2\u67f1\u3068\u8003\u3048\u65b9\u306f\u540c\u3058\u3067\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u3067\u9577\u65b9\u5f62\u306e\u6a2a\u306e\u9577\u3055\u306f\u3069\u306e\u3088\u3046\u306b\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002<span style=\"color: #0000ff;\">\u5186\u67f1\u306e\u5834\u5408\u3001\u9577\u65b9\u5f62\u306e\u6a2a\u306e\u9577\u3055\u306f\u5e95\u9762\u306e\u5186\u5468\u306e\u9577\u3055\u3068\u540c\u3058\u3067\u3059\u3002<\/span>\u305d\u306e\u305f\u3081\u5186\u5468\u306e\u9577\u3055\u3092\u8a08\u7b97\u3059\u308c\u3070\u3001\u9577\u65b9\u5f62\u306e\u6a2a\u306e\u9577\u3055\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2916\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/shmjt7.jpg\" alt=\"\" width=\"600\" height=\"368\" \/><\/p>\n<p>\u305d\u306e\u5f8c\u3001\u5e95\u9762\u7a4d\uff08\u5186\u306e\u9762\u7a4d\uff09\u3092\u51fa\u3057\u307e\u3057\u3087\u3046\u3002\u5186\u306e\u9762\u7a4d\u306f\u516c\u5f0f\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u4e2d\u5b66\u6570\u5b66\u3067\u306f\u3001\u5186\u5468\u7387\u3092\\(\u03c0\\)\u3068\u3057\u3066\u8a08\u7b97\u3057\u307e\u3059\u3002\u4e00\u65b9\u3067\u5c0f\u5b66\u751f\u306e\u7b97\u6570\u3067\u306f\u3001\u5186\u5468\u7387\u30923.14\u3067\u8a08\u7b97\u3057\u307e\u3059\u3002\u3069\u3061\u3089\u3082\u6b63\u89e3\u306a\u306e\u3067\u3001\u5186\u67f1\u306e\u8868\u9762\u7a4d\u306f\u4e2d\u5b66\u6570\u5b66\u3067\u3082\u5c0f\u5b66\u751f\u306e\u7b97\u6570\u3067\u3082\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002\u305f\u30603.14\u306e\u8a08\u7b97\u306f\u9762\u5012\u306a\u306e\u3067\u3001\u5186\u5468\u7387\u3092\\(\u03c0\\)\u3068\u3059\u308b\u307b\u3046\u304c\u8a08\u7b97\u30df\u30b9\u306f\u5c11\u306a\u3044\u3067\u3059\u3002<\/p>\n<h2>\u7df4\u7fd2\u554f\u984c\uff1a\u89d2\u67f1\u3068\u30c9\u30fc\u30ca\u30c4\u578b\uff08\u7a7a\u6d1e\u306e\u3042\u308b\u5186\u67f1\uff09\u306e\u8868\u9762\u7a4d<\/h2>\n<p><strong>Q1<\/strong>. \u6b21\u306e\u67f1\u4f53\u306e\u8868\u9762\u7a4d\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002\u306a\u304a\u3001\u5186\u5468\u7387\u306f\\(\u03c0\\)\u3068\u3057\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2918\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/shmjt10.jpg\" alt=\"\" width=\"600\" height=\"317\" \/><\/p>\n<p><strong>A1.<\/strong>\u00a0\u89e3\u7b54<\/p>\n<p><strong>(a)<\/strong><\/p>\n<p>\u307e\u305a\u306f\u5074\u9762\u7a4d\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002\u4e09\u89d2\u67f1\u306e\u5468\u56f2\u306e\u9577\u3055\u306f\\(3+4+5=12\\)cm\u3067\u3059\u3002\u307e\u305f\u3001\u305f\u3066\u306e\u9577\u3055\u306f8cm\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5074\u9762\u7a4d\u306f\u4ee5\u4e0b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(12\u00d78=96\\)<\/li>\n<\/ul>\n<p>\u6b21\u306b\u5e95\u9762\u7a4d\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002\u5e95\u9762\u306e\u4e09\u89d2\u5f62\u306f\u76f4\u89d2\u4e09\u89d2\u5f62\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u6a2a4cm\u3001\u305f\u30663cm\u306e\u4e09\u89d2\u5f62\u3060\u3068\u5206\u304b\u308a\u307e\u3059\u3002\u4e09\u89d2\u5f62\u306e\u9762\u7a4d\u3092\u51fa\u3059\u516c\u5f0f\u306b\u5f53\u3066\u306f\u3081\u308b\u3068\u3001\u5e95\u9762\u306e\u9762\u7a4d\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(4\u00d73\u00d7\\displaystyle\\frac{1}{2}=6\\)<\/li>\n<\/ul>\n<p>\u6700\u5f8c\u306b\u3001\u305d\u308c\u305e\u308c\u306e\u9762\u7a4d\u3092\u8db3\u3057\u307e\u3059\u3002\u6ce8\u610f\u70b9\u3068\u3057\u3066\u3001\u5e95\u9762\u7a4d\u306f2\u3064\u3042\u308b\u306e\u30672\u500d\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002<\/p>\n<ul>\n<li>\\(96+6\u00d72=108\\)<\/li>\n<\/ul>\n<p>\u305d\u306e\u305f\u3081\u3001\u8868\u9762\u7a4d\u306f108cm<sup>2<\/sup>\u3067\u3059\u3002<\/p>\n<p><strong>(b)<\/strong><\/p>\n<p>\u6700\u521d\u306b\u5074\u9762\u7a4d\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002\u9577\u65b9\u5f62\u306e\u6a2a\u306e\u9577\u3055\u306f\u3001\u5e95\u9762\u306e\u5186\u5468\u3068\u540c\u3058\u3067\u3059\u3002\u305d\u3053\u3067\u3001\u5186\u5468\u306e\u9577\u3055\u3092\u51fa\u3059\u516c\u5f0f\u3092\u5229\u7528\u3057\u307e\u3057\u3087\u3046\u3002\u5186\u5468\u306e\u9577\u3055\u306f\u5186\u306e\u76f4\u5f84\uff088cm\uff09\u3068\u5186\u5468\u7387\uff08\\(\u03c0\\)\uff09\u306e\u639b\u3051\u7b97\u306b\u3088\u3063\u3066\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u5186\u5468\u306e\u9577\u3055\u306f\\(8\u03c0\\)\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u5074\u9762\u306e\u305f\u3066\u306e\u9577\u3055\u306f9cm\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5074\u9762\u7a4d\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(8\u03c0\u00d79=72\u03c0\\)<\/li>\n<\/ul>\n<p>\u6b21\u306b\u5e95\u9762\u7a4d\u3092\u51fa\u3057\u307e\u3057\u3087\u3046\u3002\u5186\u306e\u9762\u7a4d\u3092\u51fa\u3059\u516c\u5f0f\u306b\u5f53\u3066\u306f\u3081\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u8a08\u7b97\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(4\u00d74\u00d7\u03c0=16\u03c0\\)<\/li>\n<\/ul>\n<p>\u6700\u5f8c\u306b\u3001\u5074\u9762\u7a4d\u3068\u4e0a\u4e0b\u306e\u5e95\u9762\u7a4d\u3092\u8db3\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(72\u03c0+16\u03c0\u00d72=108\u03c0\\)<\/li>\n<\/ul>\n<p>\u305d\u306e\u305f\u3081\u3001\u5186\u67f1\u306e\u8868\u9762\u7a4d\u306f\\(108\u03c0\\)cm<sup>2<\/sup>\u3067\u3059\u3002<\/p>\n<hr \/>\n<p><strong>Q2<\/strong>. \u6b21\u306e\u5186\u67f1\u306e\u8868\u9762\u7a4d\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002\u306a\u304a\u3001\u5186\u5468\u7387\u306f\\(\u03c0\\)\u3068\u3057\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2920\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/shmjt11-1.jpg\" alt=\"\" width=\"296\" height=\"306\" \/><\/p>\n<p><strong>A2.<\/strong>\u00a0\u89e3\u7b54<\/p>\n<p>\u8868\u9762\u7a4d\u3092\u8a08\u7b97\u3059\u308b\u5fdc\u7528\u554f\u984c\u306e\u4e00\u3064\u304c\u30c9\u30fc\u30ca\u30c4\u578b\u306e\u5186\u67f1\u3067\u3059\u3002\u5186\u67f1\u306e\u5916\u5074\u9762\u7a4d\u306e\u8a08\u7b97\u3092\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u7a7a\u6d1e\u306b\u306a\u3063\u3066\u3044\u308b\u90e8\u5206\u306e\u8868\u9762\u7a4d\u3092\u8003\u616e\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002<\/p>\n<p>\u30c9\u30fc\u30ca\u30c4\u578b\u306e\u5186\u67f1\u3067\u306f\u30013\u3064\u306e\u9762\u7a4d\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002\u307e\u305a\u3001\u5186\u67f1\u306e\u5916\u5074\u306e\u5074\u9762\u7a4d\u3092\u6c42\u3081\u307e\u3057\u3087\u3046\u3002\u5916\u5074\u306e\u5074\u9762\u7a4d\u306f\u3001\u3053\u308c\u307e\u3067\u8aac\u660e\u3057\u305f\u65b9\u6cd5\u3067\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5927\u304d\u3044\u5186\u306e\u76f4\u5f84\u306f12cm\u3067\u3059\u3002\u5186\u5468\u306e\u9577\u3055\u306f\\(12\u03c0\\)\u306a\u306e\u3067\u3001\u5074\u9762\u7a4d\u306f\u4ee5\u4e0b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(12\u03c0\u00d79=108\u03c0\\)<\/li>\n<\/ul>\n<p>\u540c\u3058\u3088\u3046\u306b\u3001\u5185\u5074\u306e\u5074\u9762\u7a4d\u3092\u6c42\u3081\u307e\u3057\u3087\u3046\u3002\u5c55\u958b\u56f3\u3092\u8003\u3048\u308b\u3068\u304d\u3001\u9577\u65b9\u5f62\u306e\u6a2a\u306e\u9577\u3055\u306f\u5186\u5468\u3068\u540c\u3058\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u5c0f\u3055\u3044\u307b\u3046\u306e\u5186\u5468\u3092\u8a08\u7b97\u3059\u308c\u3070\u3001\u5185\u5074\u306e\u5074\u9762\u7a4d\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u306f\u7a7a\u6d1e\u3067\u3042\u308b\u3082\u306e\u306e\u3001\u4eee\u306b\u7a7a\u6d1e\u306b\u5186\u67f1\u304c\u3042\u308b\u3068\u4eee\u5b9a\u3057\u305f\u3068\u304d\u3001\u3053\u306e\u5186\u67f1\u3092\u5c55\u958b\u3059\u308b\u3068\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-2923\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/shmjt13.jpg\" alt=\"\" width=\"600\" height=\"294\" \/><\/p>\n<p>\u305d\u3053\u3067\u3001\u3053\u306e\u5186\u67f1\u306e\u5074\u9762\u7a4d\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(4\u03c0\u00d79=36\u03c0\\)<\/li>\n<\/ul>\n<p>\u6b21\u306b\u3001\u5e95\u9762\u7a4d\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002\u6ce8\u610f\u70b9\u3068\u3057\u3066\u3001\u5e95\u9762\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u7a7a\u6d1e\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2924\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/12\/shmjt14.jpg\" alt=\"\" width=\"498\" height=\"325\" 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