闀挎柟浣撳拰姝ｆ柟浣撶煡璇嗘�荤粨
1.
鑷冲皯瑕?/p>
8
涓皬姝ｆ柟浣撴墠鑳芥嫾鎴愪竴涓◢澶х殑姝ｆ柟浣撱�?/p>
2.
闀挎柟浣撴渶澶氭湁涓や釜闈㈡槸姝ｆ柟褰€�?/p>
闀挎柟浣?/p>
姝ｆ柟浣?/p>
(
鐗规畩鐨勯暱鏂逛綋
)
鍥惧舰
楂?/p>
(h)
瀹?/p>
(b)
闀?/p>
(a)
妫?/p>
(a)
妫?/p>
(a)
妫?/p>
(a)
闈?/p>
6
涓?/p>
(
鐩稿鐨勯潰瀹屽叏鐩稿悓锛氬墠
闈㈠拰鍚庨潰涓�鏍枫�佸乏闈㈠拰鍙抽潰
涓�鏍枫�佷笂闈㈠拰涓嬮潰涓�鏍?/p>
)
6
涓?/p>
(
閮戒竴鏍凤紝閮芥槸姝ｆ柟
褰?/p>
)
妫?/p>
(
闈㈠拰闈㈢浉浜ょ殑绾挎
)
12
鏉?/p>
(
闀裤�?/p>
瀹姐�?/p>
楂橈紝
鐩稿鐨勬１
闀垮害鐩哥瓑
)
12
鏉?/p>
(
閮界浉绛?/p>
)
椤剁偣
(
妫卞拰妫辩浉浜ょ殑鐐?/p>
)
8
涓?/p>
8
涓?/p>
妫遍暱鍜?/p>
(12
鏉℃１闀跨殑鍜?/p>
)
4(
闀匡紜瀹斤紜楂?/p>
)
锛?脳闀匡紜4脳瀹斤紜4脳楂?/p>
=4(a
锛?/p>
b+h)=4a+4b+4h
12脳妫遍暱
=12a
琛ㄩ潰绉?/p>
(6
涓潰鐨勬�婚潰绉?/p>
)
2(
闀棵楀
+
闀棵楅珮
+
瀹矫楅珮
)
=
闀棵楀脳2+闀棵楅珮脳2+瀹?/p>
脳楂樏?
=2(ab+ah+bh)
=2ab+2ah+2bh
妫遍暱脳妫遍暱脳6
=6脳a脳a
=6a
2
搴曢潰绉?/p>
(
搴曢潰鐨勯潰绉紝鐢ㄥ瓧姣?/p>
S
琛ㄧず
)
闀棵楀
锛漚脳b
=ab
妫遍暱脳妫遍暱
=a脳a
=a
2
浣撶Н
(
鐗╀綋鎵�绔欑┖闂寸殑澶?
灏忥紝鐢ㄥ瓧姣?/p>
V
琛ㄧず
)
闀棵楀脳楂?/p>
锛濆簳闈㈢Н脳楂?/p>
=abh=Sh
妫遍暱脳妫遍暱脳妫遍暱
=
搴曢潰绉楁１闀?/p>
=a脳a脳a
=a
3
锛?/p>
Sa