ç注桩é¢çæ¥å¤´æ°éï¼æ ¹æ®æ¡©çé¢ç笼çé¿åº¦åä½ é¢çåæçé¿åº¦è®¡ç®ã
æ ¹æ®é¢ç笼çåèé¿åº¦åç¸é»ä¸»çè¦æ¥è¬éå¼çååè¿è¡ç¡®å®ï¼å°±æ¯è¯´è³å°æ4个æ¥å¤´ï¼å°±æ¯è¯´é¢ç笼ä¸çä¸æ ¹éé¿ç主çè¦ç¨4æ ¹åæåä¸æ ¹6mçç注桩é¢çæ¥å¤´æ°éï¼ä½ ç°åºçé¢çåæé¿9mï¼ä¸è¬æ¯åæ2èãä¾å¦æ¡©é¿45mï¼é¢ç笼é¿42mï¼ä½ ç°åºçé¢çåæé¿9mï¼é£ä¹9mÃ4=36m+6m=42mã
åæ¶42mé¿çé¢ç笼ä¸å¯è½ä¸æ¬¡åè£
å®æï¼ä¸è¬æ¯åæ2èï¼åè£
好ä¸èåï¼ååè£
第äºèï¼å¹¶å°2èçæ¥è¿æ¥å¥½ã
è¿å°±è¦æ ¹æ®é¢ç笼çåèé¿åº¦åç¸é»ä¸»çè¦æ¥è¬éå¼çååè¿è¡ç¡®å®ã
温馨提示:答案为网友推荐,仅供参考