{"id":373,"date":"2019-01-08T11:09:44","date_gmt":"2019-01-08T02:09:44","guid":{"rendered":"http:\/\/pobimath.synology.me\/wordpress\/?p=373"},"modified":"2019-01-08T11:11:32","modified_gmt":"2019-01-08T02:11:32","slug":"1%ea%b6%8c_%eb%aa%85%ec%a0%9c-12-%ec%88%98%ec%84%a0-%eb%82%b4%eb%a6%ac%ea%b8%b0","status":"publish","type":"post","link":"http:\/\/pobimath.synology.me\/wordpress\/archives\/373","title":{"rendered":"1\uad8c_\uba85\uc81c 12 \uc218\uc120 \ub0b4\ub9ac\uae30"},"content":{"rendered":"<blockquote><p><b><a href=\"http:\/\/aleph0.clarku.edu\/~djoyce\/java\/elements\/bookI\/propI12.html\">Proposition 12.<\/a><\/b><\/p>\n<p>To draw a straight line perpendicular to a given infinite straight line from a given point not on it.<\/p>\n<p>\uc9c1\uc120\uacfc \uadf8 \uc704\uc5d0 \uc788\uc9c0 \uc54a\uc740 \ud55c \uc810\uc774 \uc8fc\uc5b4\uc9c0\uba74 \uadf8 \uc810\uc744 \uc9c0\ub098\uace0 \uc9c1\uc120\uc5d0 \uc218\uc9c1\uc778 \uc9c1\uc120\uc744 \uadf8\uc744 \uc218 \uc788\ub2e4.<\/p><\/blockquote>\n<p>\uc9c1\uc120 $AB$\uc640 \uadf8 \uc704\uc5d0 \uc788\uc9c0 \uc54a\uc740 \ud55c \uc810 $C$\uac00 \uc8fc\uc5b4\uc84c\ub2e4\uace0 \ud558\uc790.<\/p>\n<p>\uc810 $C$\uc5d0\uc11c \uc9c1\uc120 $AB$ \ubc18\ub300\ud3b8\uc5d0 \uc788\ub294 \uc810\uae4c\uc9c0 \uac70\ub9ac\ub97c \ubc18\uc9c0\ub984\uc73c\ub85c \uc6d0\uc744 \uadf8\ub9b0\ub2e4.<\/p>\n<p>\uc6d0\uacfc \uc9c1\uc120 $AB$\uac00 \ub9cc\ub098\ub294 \uc810\uc744 \uac01\uac01 $D$, $E$\ub77c\uace0 \ud558\uc790.<\/p>\n<p>\uba85\uc81c 11\uc5d0\uc11c\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c \ub450 \uc810 \u00a0$D$, $E$\uc5d0\uc11c\u00a0\ubc18\uc9c0\ub984\uc774 \uc120\ubd84 $DE$\uc758 \uae38\uc774\uc778 \uc6d0\uc744 \uadf8\ub824\uc11c \ub9cc\ub098\ub294 \uc810\uc744 \uc787\ub294 \uc9c1\uc120\uc740 $C$\ub97c \uc9c0\ub098\uace0 \uc9c1\uc120 $AB$\uc5d0 \uc218\uc9c1\uc774\ub2e4.<\/p>\n<p style=\"text-align: right;\"><img loading=\"lazy\" class=\"aligncenter size-medium wp-image-374\" src=\"http:\/\/pobimath.synology.me\/wordpress\/wp-content\/uploads\/2019\/01\/proposition_11-300x278.png\" alt=\"\" width=\"300\" height=\"278\" srcset=\"http:\/\/pobimath.synology.me\/wordpress\/wp-content\/uploads\/2019\/01\/proposition_11-300x278.png 300w, http:\/\/pobimath.synology.me\/wordpress\/wp-content\/uploads\/2019\/01\/proposition_11.png 512w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>$\\blacksquare$<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Proposition 12. To draw a straight line perpendicular to a given infinite straight line from a given point not on it. \uc9c1\uc120\uacfc \uadf8 \uc704\uc5d0 \uc788\uc9c0 \uc54a\uc740 \ud55c \uc810\uc774 \uc8fc\uc5b4\uc9c0\uba74 \uadf8 \uc810\uc744 \uc9c0\ub098\uace0 \uc9c1\uc120\uc5d0 \uc218\uc9c1\uc778 \uc9c1\uc120\uc744 \uadf8\uc744 \uc218 \uc788\ub2e4. \uc9c1\uc120 $AB$\uc640 \uadf8 \uc704\uc5d0 \uc788\uc9c0 \uc54a\uc740 \ud55c \uc810 $C$\uac00 \uc8fc\uc5b4\uc84c\ub2e4\uace0 \ud558\uc790. \uc810 $C$\uc5d0\uc11c \uc9c1\uc120 $AB$ \ubc18\ub300\ud3b8\uc5d0 \uc788\ub294 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/pobimath.synology.me\/wordpress\/archives\/373\" class=\"more-link\">\ub354 \ubcf4\uae30<span class=\"screen-reader-text\"> &#8220;1\uad8c_\uba85\uc81c 12 \uc218\uc120 \ub0b4\ub9ac\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\/373"}],"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=373"}],"version-history":[{"count":2,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/posts\/373\/revisions"}],"predecessor-version":[{"id":376,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/posts\/373\/revisions\/376"}],"wp:attachment":[{"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/media?parent=373"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/categories?post=373"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/tags?post=373"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}