{"id":250,"date":"2018-12-21T13:49:48","date_gmt":"2018-12-21T04:49:48","guid":{"rendered":"http:\/\/pobimath.synology.me\/wordpress\/?p=250"},"modified":"2018-12-21T14:26:15","modified_gmt":"2018-12-21T05:26:15","slug":"1%ea%b6%8c-%eb%aa%85%ec%a0%9c-2","status":"publish","type":"post","link":"http:\/\/pobimath.synology.me\/wordpress\/archives\/250","title":{"rendered":"1\uad8c_\uba85\uc81c 2 \uc120\ubd84 \uc62e\uae30\uae30"},"content":{"rendered":"<blockquote class=\"tx-quote-tistory\"><p>\uba85\uc81c 2 \uc8fc\uc5b4\uc9c4 \uc120\ubd84\uacfc \uac19\uc740 \uc120\ubd84\uc744 \uc8fc\uc5b4\uc9c4 \ud55c \uc810\uc744 \ub05d\uc810\uc73c\ub85c \ud558\uc5ec \ub9cc\ub4e4 \uc218 \uc788\ub2e4.<\/p><\/blockquote>\n<p>\uc5bc\ud54f \uc0dd\uac01\ud558\uba74 \uc120\ubd84\uc5d0 \ucef4\ud37c\uc2a4\ub97c \ub300\uace0 \ubc18\uc9c0\ub984\uc744 \uc7b0 \ub2e4\uc74c \uc62e\uaca8\uc11c \uadf8\ub9ac\uba74 \ub41c\ub2e4. \ud558\uc9c0\ub9cc \ucef4\ud37c\uc2a4\ub97c \ub4e4\uace0 \uc62e\uae30\ub294 \ub3d9\uc548\uc5d0 \ubc18\uc9c0\ub984\uc774 \ub2ec\ub77c\uc9c0\uc9c0 \uc54a\uc74c\uc744 \uc99d\uba85\uc73c\ub85c \ud655\uc778\ud574\uc57c \ud55c\ub2e4. \uadf8 \uacfc\uc815\uc740 \uc544\ub798\uc640 \uac19\ub2e4. \uc0dd\uac01\ubcf4\ub2e4 \uc27d\uc9c0\ub294 \uc54a\ub2e4. \uc774 \uacfc\uc815\uc5d0\uc11c \uc815\uc0bc\uac01\ud615\uc744 \uc791\ub3c4\ud574\uc57c \ud55c\ub2e4. \uadf8\ub798\uc11c \uba85\uc81c 1\uc744 \uba85\uc81c 2 \uc55e\uc5d0 \ub193\uc740 \uac83\uc774\ub2e4.<\/p>\n<p>\uc810 $A$\uc640 \uc120\ubd84 $\\overline{BC}$\uac00 \uc8fc\uc5b4\uc84c\ub2e4\uace0 \ud558\uc790.<\/p>\n<p>\uc120\ubd84 $\\overline{AC}$\ub97c \ud55c \ubcc0\uc73c\ub85c \ud558\ub294 \uc815\uc0bc\uac01\ud615\uc744 \uadf8\ub824 \uc810 $D$\ub97c \ucc3e\ub294\ub2e4. (\uba85\uc81c 1)<\/p>\n<p>\ubc18\uc9c1\uc120 $DC$\uc640 $DA$\ub97c \uae0b\ub294\ub2e4. (P-2)<\/p>\n<p>\uc810 $C$\ub97c \uc911\uc2ec\uc73c\ub85c \ubc18\uc9c0\ub984\uc774 $\\overline{BC}$\uc778 \uc6d0 $C_1$\uc744 \uadf8\ub824\uc11c \ubc18\uc9c1\uc120 $DC$ \uc704\uc758 \uc810 $E$\ub97c \ucc3e\ub294\ub2e4. (P-3)<\/p>\n<p>\uc810 $D$\ub97c \uc911\uc2ec\uc73c\ub85c \ubc18\uc9c0\ub984\uc774 $\\overline{DE}$\uc778 \uc6d0 $C_2$\uc744 \uadf8\ub824\uc11c \ubc18\uc9c1\uc120 $DA$ \uc704\uc758 \uc810 $F$\ub97c \ucc3e\ub294\ub2e4.<\/p>\n<p>$\\overline{DE}=\\overline{DF}$\uc774\uace0 $\\overline{DC}=\\overline{DA}$\uc774\ubbc0\ub85c<\/p>\n<p>$\\overline{DE}-\\overline{DC}=\\overline{DF}-\\overline{DA}$\uc774\ub2e4. \u00a0(CN-3)<\/p>\n<p>\uc815\ub9ac\ud558\uba74<\/p>\n<p>$\\overline{CE}=\\overline{AF}$<\/p>\n<p>\uc810 $A$\ub97c \uc911\uc2ec\uc73c\ub85c \ubc18\uc9c0\ub984\uc774 $\\overline{AF}$\uc778 \uc6d0 $C_3$\uc744 \uadf8\ub9b0\ub2e4.<\/p>\n<p>\uc6d0 $C_3$ \uc704\uc5d0 \uc788\ub294 \uc810\uacfc \uc810 $A$\ub97c \uc787\ub294 \uc120\ubd84\uc774 \uba85\uc81c\uac00 \uc6d0\ud558\ub294 \uc120\ubd84\uc774\ub2e4.<\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-medium wp-image-253 aligncenter\" src=\"http:\/\/pobimath.synology.me\/wordpress\/wp-content\/uploads\/2018\/12\/Euclid_proposition_02_1-300x272.png\" alt=\"\" width=\"300\" height=\"272\" srcset=\"http:\/\/pobimath.synology.me\/wordpress\/wp-content\/uploads\/2018\/12\/Euclid_proposition_02_1-300x272.png 300w, http:\/\/pobimath.synology.me\/wordpress\/wp-content\/uploads\/2018\/12\/Euclid_proposition_02_1.png 565w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p style=\"text-align: right;\">$\\blacksquare$<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uba85\uc81c 2 \uc8fc\uc5b4\uc9c4 \uc120\ubd84\uacfc \uac19\uc740 \uc120\ubd84\uc744 \uc8fc\uc5b4\uc9c4 \ud55c \uc810\uc744 \ub05d\uc810\uc73c\ub85c \ud558\uc5ec \ub9cc\ub4e4 \uc218 \uc788\ub2e4. \uc5bc\ud54f \uc0dd\uac01\ud558\uba74 \uc120\ubd84\uc5d0 \ucef4\ud37c\uc2a4\ub97c \ub300\uace0 \ubc18\uc9c0\ub984\uc744 \uc7b0 \ub2e4\uc74c \uc62e\uaca8\uc11c \uadf8\ub9ac\uba74 \ub41c\ub2e4. \ud558\uc9c0\ub9cc \ucef4\ud37c\uc2a4\ub97c \ub4e4\uace0 \uc62e\uae30\ub294 \ub3d9\uc548\uc5d0 \ubc18\uc9c0\ub984\uc774 \ub2ec\ub77c\uc9c0\uc9c0 \uc54a\uc74c\uc744 \uc99d\uba85\uc73c\ub85c \ud655\uc778\ud574\uc57c \ud55c\ub2e4. \uadf8 \uacfc\uc815\uc740 \uc544\ub798\uc640 \uac19\ub2e4. \uc0dd\uac01\ubcf4\ub2e4 \uc27d\uc9c0\ub294 \uc54a\ub2e4. \uc774 \uacfc\uc815\uc5d0\uc11c \uc815\uc0bc\uac01\ud615\uc744 \uc791\ub3c4\ud574\uc57c \ud55c\ub2e4. \uadf8\ub798\uc11c \uba85\uc81c 1\uc744 \uba85\uc81c 2 \uc55e\uc5d0 \ub193\uc740 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/pobimath.synology.me\/wordpress\/archives\/250\" class=\"more-link\">\ub354 \ubcf4\uae30<span class=\"screen-reader-text\"> &#8220;1\uad8c_\uba85\uc81c 2 \uc120\ubd84 \uc62e\uae30\uae30&#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\/250"}],"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=250"}],"version-history":[{"count":8,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/posts\/250\/revisions"}],"predecessor-version":[{"id":268,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/posts\/250\/revisions\/268"}],"wp:attachment":[{"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/media?parent=250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/categories?post=250"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/tags?post=250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}