{"id":308,"date":"2018-12-21T15:55:06","date_gmt":"2018-12-21T06:55:06","guid":{"rendered":"http:\/\/pobimath.synology.me\/wordpress\/?p=308"},"modified":"2018-12-21T20:25:51","modified_gmt":"2018-12-21T11:25:51","slug":"1%ea%b6%8c_%eb%aa%85%ec%a0%9c-4-%ec%82%bc%ea%b0%81%ed%98%95-%ed%95%a9%eb%8f%99-%ec%a0%95%eb%a6%ac-1","status":"publish","type":"post","link":"http:\/\/pobimath.synology.me\/wordpress\/archives\/308","title":{"rendered":"1\uad8c_\uba85\uc81c 4 \uc0bc\uac01\ud615 SSS\ud569\ub3d9"},"content":{"rendered":"

Proposition 4.<\/a><\/b><\/p>\n

If two triangles have two sides equal to two sides respectively, and have the angles contained by the equal straight lines equal, then they also have the base equal to the base, the triangle equals the triangle, and the remaining angles equal the remaining angles respectively, namely those opposite the equal sides.<\/p>\n

\ub450 \uc0bc\uac01\ud615\uc5d0\uc11c \ub450\ubcc0\uacfc \uc0ac\uc774\uc5d0 \ub080 \uac01\uc774 \uc11c\ub85c \uac19\ub2e4\uba74 \ub098\uba38\uc9c0 \ubcc0\uacfc \uac01\ub4e4\uc740 \uc11c\ub85c \uac19\ub2e4.<\/p><\/blockquote>\n

\ub108\ubb34 \ub2f9\uc5f0\ud574\uc11c \uc5b4\ub5bb\uac8c \uc99d\uba85\ud574\uc57c \ud560\uae4c \uace0\ubbfc\ub41c\ub2e4. \uba3c\uc800 ‘\uac19\ub2e4’\ub294 \uc5b4\ub5bb\uac8c \uc815\uc758\ud588\uc744\uae4c \uc54c\uc544\uc57c \ud55c\ub2e4. \uc720\ud074\ub9ac\ub4dc\ub294 \uc11c\ub85c \ud3ec\uac1c\uc11c \uaf2d \ub9de\uac8c \uacb9\uccd0\uc9c0\ub294 \uac83\uc744 ‘\uac19\ub2e4’\uace0 \uc815\uc758\ud588\ub2e4. \ub530\ub77c\uc11c \uc0bc\uac01\ud615\uc774 \uaf2d \ub9de\uac8c \uacb9\uccd0\uc9d0\uc744 \ubcf4\uc774\uba74 \ub41c\ub2e4.<\/p>\n

\uc544\ub798 \uadf8\ub9bc\uc5d0\uc11c \ubcc0$AB$, \ubcc0$AC$\uac00 \ubcc0$DE$, \ubcc0$DF$\uc640 \uac01\uac01 \uac19\uace0 \uac01 $BAC$\uc640 \uac01$EDF$\uac00 \uc11c\ub85c \uac19\ub2e4\uace0 \uac00\uc815\ud558\uc790.<\/p>\n

\"\"<\/p>\n

\uc774\uc81c \ub098\uba38\uc9c0 \ubcc0$BC$\uc640 \ubcc0$EF$, \uac01$ABC$\ub294 \uac01$DEF$\uc640 \uac19\uace0 \uac01$ACB$\ub294 \uac01$DFE$\uc640 \uac19\uc74c\uc744 \ubcf4\uc774\uba74 \ub41c\ub2e4.<\/p>\n

\uba3c\uc800 \uaf2d\uc9d3\uc810 $A$\ub97c $D$\uc5d0\u00a0\ud3ec\uac1c\uc5b4 \ub193\uace0 \uc9c1\uc120 $AB$\ub97c\u00a0\uc9c1\uc120 $DE$\uc5d0\u00a0\ud3ec\uac1c\uc5b4 \ub193\uc790.<\/p>\n

$\\overline{AB}=\\overline{DE}$\uc774\ubbc0\ub85c \uaf2d\uc9d3\uc810 $B$\ub294 $E$\uc640 \ud3ec\uac1c\uc5b4 \uc9c4\ub2e4.<\/p>\n

$\\angle{\u00a0BAC}=\\angle{EDF}$\uc774\ubbc0\ub85c $AB$\uc640 $DE$\uac00 \ud3ec\uac1c\uc838 \uc788\uc73c\uba74 \uc9c1\uc120 $AC$\uc640 \uc9c1\uc120 $DF$\ub3c4 \ud3ec\uac1c\uc5b4 \uc9c4\ub2e4’.<\/p>\n

\ub530\ub77c\uc11c \uc810 $C$\uc640 \uc810 $F$\ub3c4 \ud3ec\uac1c\uc9c4\ub2e4. ($\\because \\overline{\u00a0AC }=\\overline{DF}$)<\/p>\n

\uc55e\uc5d0\uc11c \uc810 $B$\uc640\u00a0 \uc810 $E$\uac00 \uc77c\uce58\ud558\ubbc0\ub85c \ubc11\ubcc0 $BC$\uc640 \ubc11\ubcc0 $EF$\ub294 \uac19\ub2e4. (\ub450 \uc810\uc744 \uc787\ub294 \uc120\ubd84\uc740 \ub2e8 \ud558\ub098\ub2e4. )<\/p>\n

\uadf8\ub7ec\ubbc0\ub85c \uc0bc\uac01\ud615 $ABC$\uc640 \uc0bc\uac01\ud615 $DEF$\uc740 \ube48\ud2c8\uc5c6\uc774 \ud3ec\uac1c\uc5b4 \uc9c4\ub2e4.<\/p>\n

\uadf8\ub7ec\ubbc0\ub85c \ub098\uba38\uc9c0 \uac01\ub3c4 \uc11c\ub85c \uac19\ub2e4.<\/p>\n

$$\\angle {ABC}=\\angle {DEF},\\;\\;\\angle {ACB}=\\angle {DFE}$$<\/p>\n

$\\blacksquare$<\/p>\n

\uc774\ub807\uac8c \ub450 \uc0bc\uac01\ud615\uc774 \uac19\uc740 \uac83\uc744 \ud569\ub3d9($\\equiv$)\uc774\ub77c\uace0 \ud558\uace0 \uae30\ud638\ub85c \uc544\ub798\ucc98\ub7fc \uc801\ub294\ub2e4. \uc720\ud074\ub9ac\ub4dc\ub294 ‘\ud569\ub3d9’\uc744 \uc815\uc758\ud558\uc9c0 \uc54a\uace0 \ud3ec\uac1c\uc5b4 \uaf2d \ub9de\uac8c \uacb9\uccd0\uc9d0\uc744 \ubcf4\uc600\ub2e4. \uc624\ub298\ub0a0\uc740 SAS(\uba85\uc81c4), SSS(\uba4d\uc81c 8), ASA(\uba85\uc81c 26) \ud569\ub3d9 \uc815\ub9ac\ub97c \uacf5\ub9ac\ucc98\ub7fc \uc4f0\uace0 \uc788\ub2e4.<\/p>\n

$$\\triangle ABC\\equiv\\triangle DEF$$<\/p>\n","protected":false},"excerpt":{"rendered":"

Proposition 4. If two triangles have two sides equal to two sides respectively, and have the angles contained by the equal straight lines equal, then they also have the base equal to the base, the triangle equals the triangle, and the remaining angles equal the remaining angles respectively, namely those opposite the equal sides. \ub450 … <\/p>\n

\ub354 \ubcf4\uae30 “1\uad8c_\uba85\uc81c 4 \uc0bc\uac01\ud615 SSS\ud569\ub3d9”<\/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\/308"}],"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=308"}],"version-history":[{"count":8,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/posts\/308\/revisions"}],"predecessor-version":[{"id":345,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/posts\/308\/revisions\/345"}],"wp:attachment":[{"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/media?parent=308"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/categories?post=308"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/pobimath.synology.me\/wordpress\/wp-json\/wp\/v2\/tags?post=308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}