ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Èçͼ1£¬ÊÇÓÉһЩ´óСÏàͬµÄСÕý·½Ìå×éºÏ³ÉµÄ¼òµ¥¼¸ºÎÌ壬²¢·ÅÔÚǽ½Ç£®£¨×¢£ºÍ¼3¡¢Í¼4¡¢Í¼5ÿһ¸öС·½¸ñµÄ±ß³¤Îª1cm£©
£¨1£©¸Ã¼¸ºÎÌåÖ÷ÊÓͼÈçͼ3Ëùʾ£¬ÇëÔÚͼ4·½¸ñÖ½Öл³öËüµÄ¸©ÊÓͼ£»
£¨2£©Èô½«Æä¶ÔÚÍâÃæµÄ±íÃæÍ¿Ò»²ãÆᣬÔòÆäÍ¿ÆáÃæ»ýΪ¡¡ ¡¡cm2£®£¨Õý·½ÌåµÄÀⳤΪ1cm£©
£¨3£©ÓÃһЩСÁ¢·½¿é´îÒ»¸ö¼¸ºÎÌ壬ʹËüµÄÖ÷ÊÓͼºÍ¸©ÊÓͼÈçͼËùʾ£¬Ëü×îÉÙÐèÒª¶àÉÙ¸öСÁ¢·½¿é£¿×î¶àÐèÒª¶àÉÙ¸öСÁ¢·½¿é£¿²¢ÔÚͼ5·½¸ñÖ½Öл³öÐèÒª×î¶àСÁ¢·½¿éµÄ¼¸ºÎÌåµÄ×óÊÓͼ£®
¡¾´ð°¸¡¿£¨1£©¼û½âÎö£»£¨2£©16£»£¨3£©×îÉÙÐèÒª8¸öСÁ¢·½¿é£¬×î¶àÐèÒª11¸öСÁ¢·½¿é£¬Í¼¼û½âÎö
¡¾½âÎö¡¿
£¨1£©ÓÉÒÑÖªÌõ¼þ¿ÉÖª£¬¸©ÊÓͼÓÐ4ÁУ¬Ã¿ÁÐСÕý·½ÊýÐÎÊýÄ¿·Ö±ðΪ2£¬2£¬1£¬1£®¾Ý´Ë¿É»³öͼÐΣ»
£¨2£©ÏÈÇó³ö¶ÔÚÍâÃæµÄÃæÊý£¬ÔÙ³ËÒÔ1¸öÃæµÄÃæ»ý¼´¿ÉÇó½â£»
£¨3£©ÒÀ¾Ý¡°¸©ÊÓ´òµØ»ù£¬Ö÷ÊÓ·è¿ñ¸Ç¡±¿ÉµÃµ½Ëü×îÉÙÐèÒª¶àÉÙ¸öСÁ¢·½¿é£¬×î¶àÐèÒª¶àÉÙ¸öСÁ¢·½¿é£¬²¢ÔÚͼ5·½¸ñÖ½Öл³öÐèÒª×î¶àСÁ¢·½¿éµÄ¼¸ºÎÌåµÄ×óÊÓͼ¼´¿ÉÇó½â£®
½â£º£¨1£©ÈçͼËùʾ£º
£¨2£©1¡Á1¡Á£¨7+5+4£©
£½1¡Á16
£½16£¨cm2£©£®
¹ÊÆäÍ¿ÆáÃæ»ýΪ16cm2£®
¹Ê´ð°¸Îª£º16£®
£¨3£©ÈçͼËùʾ£º
ÓÉͼ֪£¬×îÉÙÐèÒª8¸öСÁ¢·½¿é£¬×î¶àÐèÒª11¸öСÁ¢·½¿é£¬
ÐèÒª×î¶àСÁ¢·½¿éµÄ¼¸ºÎÌåµÄ×óÊÓͼÈçÏ£º