ÌâÄ¿ÄÚÈÝ
Èçͼ1£¬ÓÐÒ»ÕÅÁâÐÎֽƬABCD£¬AC=8£¬BD=6£®
£¨1£©ÇëÑØ×ÅAC¼ôÒ»µ¶£¬°ÑËü·Ö³ÉÁ½²¿·Ö£¬°Ñ¼ô¿ªµÄÁ½²¿·ÖÆ´³ÉÒ»¸öƽÐÐËıßÐΣ¬ÔÚͼ2ÖÐÓÃʵÏß»³öÄãËùÆ´³ÉµÄƽÐÐËıßÐΣ»ÈôÑØ×ÅBD¼ô¿ª£¬ÇëÔÚͼ3ÖÐÓÃʵÏß»³öÆ´³ÉµÄƽÐÐËıßÐΣ»²¢Ö±½Óд³öÕâÁ½¸öƽÐÐËıßÐεÄÖܳ¤£®
£¨2£©ÑØ×ÅÒ»ÌõÖ±Ïß¼ô¿ª£¬Æ´³ÉÓëÉÏÊöÁ½ÖÖ¶¼²»È«µÈµÄƽÐÐËıßÐΣ¬ÇëÔÚͼ4ÖÐÓÃʵÏß»³öÆ´³ÉµÄƽÐÐËıßÐΣ®£¨×¢£ºÉÏÊöËù»µÄƽÐÐËıßÐζ¼²»ÄÜÓëÔÁâÐÎÈ«µÈ£©
Öܳ¤Îª______Öܳ¤Îª______£®
£¨1£©ÇëÑØ×ÅAC¼ôÒ»µ¶£¬°ÑËü·Ö³ÉÁ½²¿·Ö£¬°Ñ¼ô¿ªµÄÁ½²¿·ÖÆ´³ÉÒ»¸öƽÐÐËıßÐΣ¬ÔÚͼ2ÖÐÓÃʵÏß»³öÄãËùÆ´³ÉµÄƽÐÐËıßÐΣ»ÈôÑØ×ÅBD¼ô¿ª£¬ÇëÔÚͼ3ÖÐÓÃʵÏß»³öÆ´³ÉµÄƽÐÐËıßÐΣ»²¢Ö±½Óд³öÕâÁ½¸öƽÐÐËıßÐεÄÖܳ¤£®
£¨2£©ÑØ×ÅÒ»ÌõÖ±Ïß¼ô¿ª£¬Æ´³ÉÓëÉÏÊöÁ½ÖÖ¶¼²»È«µÈµÄƽÐÐËıßÐΣ¬ÇëÔÚͼ4ÖÐÓÃʵÏß»³öÆ´³ÉµÄƽÐÐËıßÐΣ®£¨×¢£ºÉÏÊöËù»µÄƽÐÐËıßÐζ¼²»ÄÜÓëÔÁâÐÎÈ«µÈ£©
Öܳ¤Îª______Öܳ¤Îª______£®
£¨1£©¡ßÁâÐεÄÁ½Ìõ¶Ô½ÇÏß³¤·Ö±ðΪ6£¬8£¬
¡à¶Ô½ÇÏßµÄÒ»°ë·Ö±ðΪ3£¬4£¬
¡àÁâÐεı߳¤·Ö±ðΪ5£¬
¡àµÚÒ»¸öƽÐÐËıßÐεÄÖܳ¤Îª2¡Á£¨5+8£©=26£»µÚ¶þ¸öƽÐÐËıßÐεÄÖܳ¤Îª2¡Á£¨5+6£©=22£»
£¨2£©
¡à¶Ô½ÇÏßµÄÒ»°ë·Ö±ðΪ3£¬4£¬
¡àÁâÐεı߳¤·Ö±ðΪ5£¬
¡àµÚÒ»¸öƽÐÐËıßÐεÄÖܳ¤Îª2¡Á£¨5+8£©=26£»µÚ¶þ¸öƽÐÐËıßÐεÄÖܳ¤Îª2¡Á£¨5+6£©=22£»
£¨2£©
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿