Question

С³Â´Ó·ÏÆ·»ØÊÕÕ¾Öмð»ØÒ»¸ùÖÊÁ¿´óÔ¼500¿Ë£¬Ã»ÓгÓíȵľɸ˳ӣ¬¸Ë³ÓÉϵĿ̶ÈÄ£ºý²»Ç壬Èçͼ4£¬Ð¡³ÂÓÃÏÂÁÐÆ÷²Ä½øÐÐÁËÏÂÁвâÁ¿¡£

Æ÷²Ä£º¹³Âë2Ö»£¬´óÔ¼100¿Ë£¬Á¿³ÌΪ300¿ËµÄÍÐÅÌÌìƽ£¨º¬íÀÂ룩£¬ºÁÃ׿̶ȳßÒ»°Ñ£¬ÇáÖÊϸÉþÁ½¸ù

ÒªÇó£º1£®²â¸Ë³ÓµÄÖÊÁ¿m

£¨1£©ÇëÄãд³öС³Â²âÁ¿¸Ë³ÓµÄÖÊÁ¿µÄÖ÷ҪʵÑé²½Ö裨±íÊöÖÐÓõ½µÄ×Öĸ¿ÉÒÔÈÎÒâÑ¡È¡£©¡££¨2£©ÒªÖ±½Ó²âÁ¿µÄÎïÀíÁ¿ÓÐ ¡£

2£®²â¶¨ÐǵÄλÖÃС³ÂÕÒµ½Á˸˳ӵijÓíÈ£¬²¢²â³öÁËíȵÄÖÊÁ¿Îªm₁£¬ÇëÄã°ïËûÕÒ³ö¶¨ÐǵÄλÖ㬷½·¨ÊÇ£º

ͼ4

Answer 1

1£®²â¸Ë³ÓµÄÖÊÁ¿m

(1) ¢ÙÓÃϸÉþ˩סÁ½¸ö¹³Â꣨×÷Ϊ³ÓíÈÓ㩲¢ÓÃÌìƽ²â³öËüµÄÖÊÁ¿¡­¡­¡­¡­£¨1·Ö£©

¢ÚÓÃϸÉþ˩ס¸Ë³Ó£¬ÊúÖ±Ðü¹Ò£¬²¢µ÷ÕûË©¸Ë³ÓµÄ½áµãλÖã¬Ö±µ½¸Ë³Óˮƽƽºâ£¬¼ÇϽáµãλÖÃA£¨´ËµãΪ³ÓµÄÖØÐÄλÖã©

¢ÛÌáÆðÌáŤ£¬Òƶ¯³ÓíȵÄλÖã¬Ê¹¸Ë³Óˮƽƽºâ£¬¼ÇϳÓíÈÐü¹Ò¸Ë³ÓµÄλÖÃB¡­¡­1·Ö

¢ÜÓÿ̶ȳßÁ¿³öOA¡¢OBµÄ³¤¶È£¬£¨Èçͼ£©¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­£¨1·Ö£©

¢Ý¾Ý¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­£¨1·Ö£©

£¨2£©OA¡¢OB¡¢¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­£¨3·Ö£©

2£®²â¶¨ÐǵÄλÖÃ

°Ñ³ÓíÈÐü¹ÒÓڸ˳ÓÉÏ£¬ÌáÆðÌáŤ£¬µ÷ÕûíȵÄλÖã¬Ö±µ½¸Ë³Óˮƽƽºâ£¬¼ÇÏÂíÈÐü¹Ò³ÓµÄλÖÃC£¬C¼´Îª¶¨ÐǵÄλÖá­¡­¡­¡­¡­¡­¡­¡­¡­¡­£¨2·Ö£©