ÌâÄ¿ÄÚÈÝ
Èçͼ1Ëùʾ£¬Ò»ÕÅÈý½ÇÐÎֽƬABC£¬¡ÏACB=90¡ã,AC=8,BC=6.ÑØб±ßABµÄÖÐÏßCD°ÑÕâÕÅֽƬ¼ô³ÉºÍ
Á½¸öÈý½ÇÐΣ¨Èçͼ2Ëùʾ£©.½«Ö½Æ¬
ÑØÖ±Ïß
£¨AB£©·½ÏòƽÒÆ£¨µã
ʼÖÕÔÚͬһֱÏßÉÏ£©£¬µ±µã
ÓÚµãBÖغÏʱ£¬Í£Ö¹Æ½ÒÆ.ÔÚƽÒƹý³ÌÖУ¬
Óë
½»ÓÚµãE,
Óë
·Ö±ð½»ÓÚµãF¡¢P.
(1) µ±Æ½ÒƵ½Èçͼ3ËùʾµÄλÖÃʱ£¬²ÂÏëͼÖеÄ
Óë
µÄÊýÁ¿¹Øϵ£¬²¢Ö¤Ã÷ÄãµÄ²ÂÏ룻
(2)
ÉèƽÒƾàÀë






(3)
¶ÔÓÚ£¨2£©ÖеĽáÂÛÊÇ·ñ´æÔÚÕâÑùµÄ
´ð°¸£º

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿