㈠ 鍦嗘熅鐨勫簳闈㈠崐寰勪負6cm錛岄珮涓10cm錛岃殏鋩佸湪鍦嗘熅琛ㄩ潰鐖琛岋紝浠嶢鐐圭埇鍒扮偣B鐨勬渶鐭璺紼嬫槸______cm
鍦嗘熅鐨勫簳闈㈠崐寰勪負6cm錛岄珮涓10cm錛岃殏鋩佸湪鍦嗘熅琛ㄩ潰鐖琛岋紝浠嶢鐐圭埇鍒扮偣B鐨勬渶鐭璺紼嬫槸17.4錛坈m錛
鍦嗘熅搴曢潰鍛ㄩ暱涓猴細6x2x蟺=16蟺
灝鍦嗘熅浣渚ч潰灞曞紑錛屾槸涓涓闀挎柟褰錛屽皢AB涓ょ偣鐩寸嚎榪炴帴錛
鍥犱負涓ょ偣涔嬮棿綰挎墊渶鐭錛屾墍浠ユゆ椂AB涓烘渶鐭璺紼
鍙浠ヨ繃鐐笰鍜岀偣B鐨勫歡闀跨嚎鍋欰C鍨傜洿浜嶣C浜や簬鐐笴錛屽垯鍦ㄢ柍ABC涓錛
AC=16蟺/2=8蟺錛孊C=10錛屾墍浠AB=鏍瑰彿錛圓C²+BC²錛=鏍瑰彿錛64蟺²+100錛夆増17.4錛坈m錛
鍦嗘熅鏄鐢變互鐭╁艦鐨勪竴鏉¤竟鎵鍦ㄧ洿綰誇負鏃嬭漿杞達紝鍏朵綑涓夎竟緇曡ユ棆杞杞存棆杞涓鍛ㄨ屽艦鎴愮殑鍑犱綍浣撱傚畠鏈2涓澶у皬鐩稿悓銆佺浉浜掑鉤琛岀殑鍦嗗艦搴曢潰鍜1涓鏇查潰渚ч潰銆傚叾渚ч潰灞曞紑鏄鐭╁艦銆
㈡ 濡傚浘12,宸茬煡鍦嗘熅鐨勫簳闈㈠崐寰勪負6cm,楂樹負10cm,鋩傝殎浠嶢鐐圭埇鍒癉鐐硅佸氬皯鍘樼背錛熷揩鐐規ワ紒錛
鎶婂渾鏌變晶闈㈡墦寮錛屾槸涓涓闀挎柟褰錛屼粠A鐐瑰埌B鐐規槸榪欎釜闀挎柟褰㈢殑涓鍗婏紝榪炴帴AB錛屽嵆涓鴻殏鋩佺埇榪囩殑璺綰匡紝涔熸槸涓夎掑艦鐨勬枩杈癸紝涓鏉$洿瑙掕竟涓洪珮10cm,鍙︿竴鏉$洿瑙掕竟涓
3.14脳6脳2梅2=18.84錛坈m)
AB²=18.84²+10²
AB鈮21.33錛坈m錛