{"id":318,"date":"2018-12-21T16:10:53","date_gmt":"2018-12-21T07:10:53","guid":{"rendered":"http:\/\/pobimath.synology.me\/wordpress\/?p=318"},"modified":"2018-12-21T20:26:35","modified_gmt":"2018-12-21T11:26:35","slug":"1%ea%b6%8c_%eb%aa%85%ec%a0%9c-26-%ec%82%bc%ea%b0%81%ed%98%95-%ed%95%a9%eb%8f%99-%ec%a0%95%eb%a6%ac-3","status":"publish","type":"post","link":"http:\/\/pobimath.synology.me\/wordpress\/archives\/318","title":{"rendered":"1\uad8c_\uba85\uc81c 26 \uc0bc\uac01\ud615 ASA\ud569\ub3d9"},"content":{"rendered":"<blockquote class=\"tx-quote-tistory\"><p><b><a href=\"http:\/\/aleph0.clarku.edu\/~djoyce\/java\/elements\/bookI\/propI26.html\">Proposition 26.<\/a><\/b><\/p>\n<p>If two triangles have two angles equal to two angles respectively, and one side equal to one side, namely, either the side adjoining the equal angles, or that opposite one of the equal angles, then the remaining sides equal the remaining sides and the remaining angle equals the remaining angle.<\/p>\n<p style=\"float: none; text-align: justify; clear: none;\">\ub450 \uac01\uc774 \uac01\uac01 \uac19\uace0 \ud55c \ubcc0\uc774 \uac19\uc740 \ub450 \uc0bc\uac01\ud615\uc740(\uc11c\ub85c \uac19\uc740 \ubcc0\uc774 \ub450 \uac01\uacfc \ubaa8\ub450 \ub9cc\ub098\uac70\ub098 \uac74\ub108\ud3b8\uc5d0 \uc788\ub294 \ubcc0\uc774\ub77c\ub3c4) \ub098\uba38\uc9c0 \uac01\uacfc \ubcc0\ub3c4 \uc11c\ub85c \uac19\ub2e4.<\/p>\n<\/blockquote>\n<p>\ubcf4\ud1b5 \uad50\uacfc\uc11c\uc5d0 \ud55c \ubcc0\uacfc \uc591 \ub05d\uac01\uc774 \uac19\ub2e4\uace0 \uc801\uc9c0\ub9cc \uad73\uc774 \uc591 \ub05d\uac01\uc77c \ud544\uc694\ub294 \uc5c6\uc74c\uc744 \uae08\uc138 \uc54c \uc218 \uc788\ub2e4. \uc0bc\uac01\ud615\uc758 \ub0b4\uac01\uc758 \ud569\uc740 180\ub3c4\ub85c \uc77c\uc815\ud558\ub2e4\ub294 \uba85\uc81c\ub97c \uc99d\uba85\ud558\uc9c0 \uc54a\uc558\uae30 \ub54c\ubb38\uc5d0 \uc774 \uba85\uc81c\ub294 \ub458\ub85c \ub098\ub204\uc5b4 \uc99d\uba85\ud55c\ub2e4.<\/p>\n<p>$\\triangle{ABC},\\triangle{ DEF}$\uc774 \uc788\ub2e4.<\/p>\n<p>$$\\angle{ABC}=\\angle{DEF} ,\\angle{BCA}=\\angle{EFD}\\tag{1}$$\ub77c\uace0 \ud558\uc790.<\/p>\n<p>&nbsp;<\/p>\n<p>\uba3c\uc800 1. $\\overline{BC}=\\overline{EF}$\ub77c \ud558\uace0 \ub098\uba38\uc9c0 \ub450 \ubcc0\uacfc \uac01\uc774 \uc11c\ub85c \uac19\uc74c\uc744 \ubcf4\uc774\uc790. (\ud55c \ubcc0\uacfc \uc591 \ub05d\uac01\uc774 \uac19\uc740 \uacbd\uc6b0)<\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-319\" src=\"http:\/\/pobimath.synology.me\/wordpress\/wp-content\/uploads\/2018\/12\/3-300x139.png\" alt=\"\" width=\"500\" height=\"231\" srcset=\"http:\/\/pobimath.synology.me\/wordpress\/wp-content\/uploads\/2018\/12\/3-300x139.png 300w, http:\/\/pobimath.synology.me\/wordpress\/wp-content\/uploads\/2018\/12\/3.png 661w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>\uc989, $\\overline{AB}=\\overline{DE}$\uc640 $\\overline{AC}=\\overline{DF}$\uc774\uace0 $\\angle {BAC}=\\angle {EDF}$ \uc784\uc744 \ubcf4\uc774\uae30\ub85c \ud558\uc790.<\/p>\n<p>\ub9cc\uc57d\uc5d0 $\\overline{AB}\\not=\\overline{DE}$\uc774\uba74 \uc5b4\ub290 \ud558\ub098\uac00 \ud074 \uac83\uc774\ub2e4.<\/p>\n<p>\uc774\ub54c, $\\overline{AB}&gt;\\overline{DE}$\ub77c\uace0 \ud558\uba74 $\\overline{BG}=\\overline{DE}$\uc778 \uc810 $G$\ub97c \uc7a1\uc744 \uc218 \uc788\ub2e4.<\/p>\n<p>$\\overline{BG}=\\overline{DE}$, $\\overline{BC}=\\overline{EF}$, $\\angle{ABC}=\\angle{DEF}$\uc774\ubbc0\ub85c \uba85\uc81c 4\uc5d0 \ub530\ub77c\uc11c<\/p>\n<p>$$\\triangle GBC\\equiv\\triangle DEF$$<\/p>\n<p>$$\\angle{GCB}=\\angle{DFE}$$<\/p>\n<p>\uc774\uac83\uc740<\/p>\n<p>$$\\angle{GCB}=\\angle{ACB}\\;\\;\\;(\\because (1)\\angle{BCA}=\\angle{EFD})$$\ub77c\uc57c \ud558\ubbc0\ub85c \ubaa8\uc21c\uc774\ub2e4.<\/p>\n<p>$$\\therefore \\overline{AB}=\\overline{DE}$$<\/p>\n<p>\uba85\uc81c 4\uc5d0 \ub530\ub77c<\/p>\n<p>$$\\triangle ABC\\equiv\\triangle DEF$$<\/p>\n<p>&nbsp;<\/p>\n<p>2. \ub2e4\uc74c\uc73c\ub85c $\\overline{AB}=\\overline{DE}$\uc774\uace0 $\\overline{BC}\\not=\\overline{EF}$\ub77c\uace0 \ud558\uc790.<\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-320\" src=\"http:\/\/pobimath.synology.me\/wordpress\/wp-content\/uploads\/2018\/12\/4-300x136.png\" alt=\"\" width=\"500\" height=\"227\" srcset=\"http:\/\/pobimath.synology.me\/wordpress\/wp-content\/uploads\/2018\/12\/4-300x136.png 300w, http:\/\/pobimath.synology.me\/wordpress\/wp-content\/uploads\/2018\/12\/4.png 656w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>\ub9cc\uc57d\uc5d0 $\\overline{BC}\\not=\\overline{EF}$\uc774\uba74 \uc5b4\ub290 \ud558\ub098\uac00 \ud074 \uac83\uc774\ub2e4.<\/p>\n<p>\uc774\ub54c, $\\overline{BC}&gt;\\overline{EF}$\ub77c\uace0 \ud558\uba74 $\\overline{BH}=\\overline{EF}$\uc778 \uc810 $H$\ub97c \uc7a1\uc744 \uc218 \uc788\ub2e4.<\/p>\n<p>\uc704\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c<\/p>\n<p>$$\\triangle ABH\\equiv\\triangle DEF$$ \uc774\ubbc0\ub85c<\/p>\n<p>$$\\angle BHA=\\angle EFD$$\uc774\ub2e4.<\/p>\n<p>\uc774\uac83\uc740<\/p>\n<p>$$\\angle BHA=\\angle BCA\\;\\;\\;(\\because (1)\\angle{BCA}=\\angle{EFD})$$\uac00 \ub418\ubbc0\ub85c \ubaa8\uc21c\uc774\ub2e4.<\/p>\n<p>\ub530\ub77c\uc11c $\\overline{BC}=\\overline{EF}$\uc774\ubbc0\ub85c<\/p>\n<p>$$\\triangle ABC\\equiv\\triangle DEF$$<\/p>\n<p style=\"float: none; text-align: right; clear: none;\">$\\blacksquare$<\/p>\n<p style=\"float: none; text-align: justify; clear: none;\">\uc774\ucc98\ub7fc \uadf8\ub0e5 \uc678\uc6b0\uba74 \uac04\ub2e8\ud55c \uc815\ub9ac\ub3c4 \ub9c9\uc0c1 \uc99d\uba85\ud558\ub824\uace0 \ud558\uba74 \uc0c1\ub2f9\ud55c \uacf5\uc744 \ub4e4\uc5ec\uc57c \ud55c\ub2e4. \uc624\uc8fd\ud558\uba74 \ub6f0\uc5b4\ub09c \uc218\ud559\uc790 \ub370\uce74\ub974\ud2b8\ub3c4 \uc774 \uacfc\uc815\uc774 \ud798\ub4e4\uc5b4\uc11c \ud574\uc11d\uae30\ud558\ud559\uc744 \ub9cc\ub4e4\uc5c8\uc744\uae4c?<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Proposition 26. If two triangles have two angles equal to two angles respectively, and one side equal to one side, namely, either the side adjoining the equal angles, or that opposite one of the equal angles, then the remaining sides equal the remaining sides and the remaining angle equals the remaining angle. \ub450 \uac01\uc774 \uac01\uac01 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/pobimath.synology.me\/wordpress\/archives\/318\" class=\"more-link\">\ub354 \ubcf4\uae30<span class=\"screen-reader-text\"> &#8220;1\uad8c_\uba85\uc81c 26 \uc0bc\uac01\ud615 ASA\ud569\ub3d9&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4],"tags":[],"_links":{"self":[{"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/posts\/318"}],"collection":[{"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/comments?post=318"}],"version-history":[{"count":5,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/posts\/318\/revisions"}],"predecessor-version":[{"id":346,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/posts\/318\/revisions\/346"}],"wp:attachment":[{"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/media?parent=318"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/categories?post=318"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/tags?post=318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}