(±¾ÌâÂú·Ö6·Ö)

Èçͼ£¬·½¸ñÖ½ÖеÄÿ¸öС·½¸ñ¶¼ÊDZ߳¤Îª1¸öµ¥Î»³¤¶ÈµÄÕý·½ÐΣ¬Rt¡÷ABCµÄ¶¥µã¾ùÔÚ¸ñµãÉÏ£¬ÔÚ½¨Á¢Æ½ÃæÖ±½Ç×ø±êϵÒԺ󣬵ãAµÄ×ø±êΪ£¨-6£¬1£©£¬µãBµÄ×ø±êΪ£¨-3£¬1£©,µãCµÄ×ø±êΪ£¨-3£¬3£©£®

1.£¨1£©½«Rt¡÷ABCÑØXÖáÕý·½ÏòƽÒÆ5¸öµ¥Î»µÃµ½Rt¡÷A1B1C1£¬ÊÔÔÚͼÉÏ»­³öRt¡÷A1B1C1µÄͼÐΣ¬²¢Ð´³öµãA1µÄ×ø±ê¡£

2.£¨2£©½«Ô­À´µÄRt¡÷ABCÈÆ×ŵãB˳ʱÕëÐýת90¡ãµÃµ½Rt¡÷A2B2C2£¬ÊÔÔÚͼ»­³öRt¡÷A2B2C2µÄͼÐΡ£

 

 

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º

£¨±¾ÌâÂú·Ö10·Ö£©Èçͼ£¬ABÊÇ¡ÑOµÄÖ±¾¶£¬ PΪABÑÓ³¤ÏßÉÏÈÎÒâÒ»µã£¬CΪ°ëÔ²ACBµÄÖе㣬PDÇСÑOÓÚµãD£¬Á¬½áCD½»ABÓÚµãE£®

ÇóÖ¤£º£¨1£©PD=PE£»

£¨2£©£®

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º

£¨±¾ÌâÂú·Ö10·Ö£©

Èçͼ£¬ÔÚƽÃæÖ±½Ç×ø±êϵÖУ¬£¬ÇÒ£¬µãµÄ×ø±êÊÇ£®

£¨1£©ÇóµãµÄ×ø±ê£»

£¨2£©Çó¹ýµãµÄÅ×ÎïÏߵıí´ïʽ£»

£¨3£©Á¬½Ó£¬ÔÚ£¨2£©ÖеÄÅ×ÎïÏßÉÏÇó³öµã£¬Ê¹µÃ£®

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º

£¨±¾ÌâÂú·Ö12·Ö£©

Èçͼ£¬ÔÚƽÃæÖ±½Ç×ø±êϵÖУ¬ÒÑÖªÅ×ÎïÏß½»ÖáÓÚÁ½µã£¬½»ÖáÓÚµã.

£¨1£©Çó´ËÅ×ÎïÏߵĽâÎöʽ£»

£¨2£©Èô´ËÅ×ÎïÏߵĶԳÆÖáÓëÖ±Ïß½»ÓÚµãD£¬×÷¡ÑDÓëxÖáÏàÇУ¬¡ÑD½»ÖáÓÚµãE¡¢FÁ½µã£¬ÇóÁÓ»¡EFµÄ³¤£»

£¨3£©PΪ´ËÅ×ÎïÏßÔÚµÚ¶þÏóÏÞͼÏñÉϵÄÒ»µã£¬PG´¹Ö±ÓÚÖᣬ´¹×ãΪµãG£¬ÊÔÈ·¶¨PµãµÄλÖã¬Ê¹µÃ¡÷PGAµÄÃæ»ý±»Ö±ÏßAC·ÖΪ1©U2Á½²¿·Ö.

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º

£¨±¾ÌâÂú·Ö12·Ö£©
Èçͼ£¬ÔÚ¡÷ABCÖУ¬ADƽ·Ö¡ÏBAC.

£¨1£©ÈôAC=BC£¬¡ÏB©U¡ÏC=2©U1£¬ÊÔд³öͼÖеÄËùÓеÈÑüÈý½ÇÐΣ¬²¢¸øÓèÖ¤Ã÷£®
£¨2£©ÈôABBD£½AC£¬Çó¡ÏB©U¡ÏC µÄ±ÈÖµ

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º2010Äê¸ß¼¶ÖеÈѧУÕÐÉúÈ«¹úͳһ¿¼ÊÔÊýѧ¾í£¨ºþ±±¶÷Ê©£© ÌâÐÍ£º½â´ðÌâ

£¨±¾ÌâÂú·Ö8·Ö£©

ÈçͼÊÇijµØ6ÔÂ1ÈÕÖÁ6ÔÂ7ÈÕÿÌì×î¸ß¡¢×îµÍÆøεÄÕÛÏßͳ¼Æͼ£®

ÇëÄã¸ù¾ÝÕÛÏßͳ¼Æͼ£¬»Ø´ðÏÂÁÐÎÊÌ⣺

(1)ÔÚÕâ7ÌìÖУ¬ÈÕβî×î´óµÄÒ»ÌìÊÇ6ÔÂ_____ÈÕ£»

(2)Õâ7ÌìµÄÈÕ×î¸ßÆøεÄƽ¾ùÊýÊÇ______¡æ£»

(3)Õâ7ÌìÈÕ×î¸ßÆøεķ½²îÊÇ _______     £®

 

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸