Èçͼ1£¬½«Õý·½ÐÎֽƬÕÛµþ£¬Ê¹µãÂäÔÚ±ßÉÏÒ»µã£¨²»Óëµã£¬Öغϣ©£¬Ñ¹Æ½ºóµÃµ½ÕÛºÛ£®

СÌâ1:µ±Ê±£¬ÇóµÄÖµ£®£¨·½·¨Ö¸µ¼£ºÎªÁËÇóµÃµÄÖµ£¬¿ÉÏÈÇ󡢵ij¤£¬²»·ÁÉè=2£©
СÌâ2:ÔÚͼ1ÖУ¬ÈôÔòµÄÖµµÈÓÚ        £»ÈôÔòµÄÖµµÈÓÚ        £»Èô£¨ÎªÕûÊý£©£¬ÔòµÄÖµµÈÓÚ        £®£¨Óú¬µÄʽ×Ó±íʾ£©
СÌâ3:Èçͼ2£¬½«¾ØÐÎֽƬÕÛµþ£¬Ê¹µãÂäÔÚ±ßÉÏÒ»µã£¨²»ÓëµãÖغϣ©£¬Ñ¹Æ½ºóµÃµ½ÕÛºÛÉèÔòµÄÖµµÈÓÚ        £®£¨Óú¬µÄʽ×Ó±íʾ£©

СÌâ1:Èçͼ£¨1-1£©£¬Á¬½ÓBM£¬EM£¬BE£®

ÓÉÌâÉ裬µÃËıßÐÎABNMºÍËıßÐÎFENM¹ØÓÚÖ±ÏßMN¶Ô³Æ£®
¡àMN´¹Ö±Æ½·ÖBE£®¡à BM=EM£¬BN=£Å£Í
¡ßËıßÐÎABCDÊÇÕý·½ÐΣ¬
¡à
¡ß                                             2·Ö
ÉèBN=x£¬ÔòNE=x,NC=2-x
ÔÚRt¡÷CNEÖУ¬£®
¡à½âµÃ£¬¼´                               1·Ö
ÔÚRt¡÷ABMºÍÔÚRt¡÷DENÖУ¬
£¬

¡à
ÉèAM=y,ÔòDM=2-y
¡à
½âµÃ¼´                                                 1·Ö
¡à                                                           1·Ö
СÌâ2:£»£»
СÌâ3:
Á¬½ÓBM£¬EM£¬BE£®ÓÉÌâÉ裬µÃËıßÐÎABNMºÍËıßÐÎFENM¹ØÓÚÖ±ÏßMN¶Ô³Æ£®ÓÉÖá¶Ô³ÆµÄÐÔÖÊÖªMN´¹Ö±Æ½·ÖBE£®ÓÐBM=EM£¬BN=EN£®ÓÉÓÚËıßÐÎABCDÊÇÕý·½ÐΣ¬ÔòÓСÏA=¡ÏD=¡ÏC=90¡ã£¬ÉèAB=BC=CD=DA=2£®Óɵã¬CE=DE=1£»ÉèBN=x£¬ÔòNE=x£¬NC=2-x£®ÔÚRt¡÷CNEÖУ¬Óɹ´¹É¶¨ÀíÖªNE2=CN2+CE2£®¼´x2=£¨2-x£©2+12¿É½âµÃxµÄÖµ£¬´Ó¶øµÃÒÔBNµÄÖµ£¬ÔÚRt¡÷ABMºÍÔÚRt¡÷DEMÖУ¬Óɹ´¹É¶¨ÀíÖªAM2+AB2=BM2£¬DM2+DE2=EM2£¬ÓÐAM2+AB2=DM2+DE2£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º²»Ïê ÌâÐÍ£ºÌî¿ÕÌâ

¾ØÐεÄÁ½Ìõ¶Ô½ÇÏßËù¼ÐµÄÈñ½ÇΪ£¬½Ï¶ÌµÄ±ß³¤Îª12£¬Ôò¶Ô½ÇÏß³¤Îª           ¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º²»Ïê ÌâÐÍ£ºÌî¿ÕÌâ

Èçͼ£¬ÔÚƽÐÎËıßÐÎABCDÖУ¬µãEΪCD±ßµÄÖе㣬Á¬½ÓBE£¬Èô¡ÏABE=¡ÏACB£¬AB£½£¬Ôò.ACµÄ³¤Îª____£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º²»Ïê ÌâÐÍ£ºÌî¿ÕÌâ

Èçͼ£¬ÔÚÌÝÐÎABCDÖУ¬AB¡ÎCD£¬ÖÐλÏßEF½»BDÓÚH£¬AF½»    BDÓÚG£¬CD£½2AB£¬Ôò: £½         ¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º²»Ïê ÌâÐÍ£ºµ¥Ñ¡Ìâ

Èçͼ£¬ÔÚÁâÐÎABCDÖУ¬AB=BD£®µãE¡¢F·Ö±ðÔÚAB¡¢ADÉÏ£¬ÇÒAE=DF£®Á¬½ÓBFÓëDEÏཻÓÚµãG£¬Á¬½ÓCGÓëBDÏཻÓÚµãH£®ÏÂÁнáÂÛ£º¢Ù¡÷AED¡Õ¡÷DFB£»¢ÚSËıßÐÎBCDG=CG2£»¢ÛÈôAF=2DF£¬ÔòBG=6GF£®
ÆäÖÐÕýÈ·µÄ½áÂÛ£¨¡¡¡¡£©

¡¡A£®¢Ù¢Ú¡¡¡¡¡¡¡¡  B£®¢Ù¢Û  ¡¡¡¡¡¡ C£®¢Ú¢Û¡¡¡¡¡¡  D£®¢Ù¢Ú¢Û

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º²»Ïê ÌâÐÍ£ºÌî¿ÕÌâ

ÈçÏÂͼ£¬ÔÚƽÐÐËıßÐÎABCDÖУ¬EÊÇBAÑÓ³¤ÏßÉÏÒ»µã£¬AB £½AE£¬Á¬½áCE½»ADÓÚµãF£¬ÈôCFƽ·Ö¡ÏBCD£¬AB£½3£¬ÔòBCµÄ³¤Îª____£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º²»Ïê ÌâÐÍ£ºÌî¿ÕÌâ

Èçͼ£¬°Ñ¾ØÐÎABCDÑØEFÕÛµþ£¬Ê¹µãCÂäÔÚµãA´¦£¬µãDÂäÔÚµãG´¦£¬Èô¡ÏCFE=60¡ã£¬ÇÒDE=1£¬Ôò±ßBCµÄ³¤Îª       £®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º²»Ïê ÌâÐÍ£ºµ¥Ñ¡Ìâ

ÒÑÖªÁâÐεÄÁ½Ìõ¶Ô½ÇÏß³¤·Ö±ðΪ10¡¢24£¬ÔòËüµÄÖܳ¤µÈÓÚ(    )
A£®34B£®240 C£®52D£®120

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º²»Ïê ÌâÐÍ£ºµ¥Ñ¡Ìâ

ÏÂÁÐÃüÌâÊÇÕæÃüÌâµÄÊÇ£¨   £©
A£®¶Ô½ÇÏß´¹Ö±ÇÒÏàµÈµÄËıßÐÎÊÇÕý·½ÐÎ
B£®Á½Ìõ¶Ô½ÇÏßÏàµÈµÄƽÐÐËıßÐÎÊǾØÐÎ
C£®Á½±ßÏàµÈµÄƽÐÐËıßÐÎÊÇÁâÐÎ
D£®ÓÐÒ»¸ö½ÇÊÇÖ±½ÇµÄƽÐÐËıßÐÎÊÇÕý·½ÐÎ

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸