这形状到底叫什么啊,三角体?椎体?还是什么玩意= =!~~~~然后求它体积公式。。。。 三角体体积计算公式
\u67f1\u4f53\u5305\u62ec\u4ec0\u4e48\uff1f\u690e\u4f53\u5305\u62ec\u4ec0\u4e48\uff1f\u67f1\u4f53\u5305\u62ec\uff1a\u5706\u67f1\uff0c\u68f1\u67f1\u3002
\u9525\u4f53\u5305\u62ec\uff1a\u5706\u9525\uff0c\u68f1\u9525\u3002
\u67f1\u4f53\uff1a
\u4e00\u4e2a\u591a\u9762\u4f53\u6709\u4e24\u4e2a\u9762\u4e92\u76f8\u5e73\u884c\u4e14\u5927\u5c0f\u76f8\u540c\uff0c\u4f59\u4e0b\u7684\u6bcf\u4e2a\u76f8\u90bb\u4e24\u4e2a\u9762\u7684\u4ea4\u7ebf\u4e92\u76f8\u5e73\u884c\uff0c\u8fd9\u6837\u7684\u591a\u9762\u4f53\u5c31\u4e3a\u67f1\uff1b\u53e6\u5916\uff0c\u67f1\u4f53\u8fd8\u53ef\u5206\u4e3a\u6b63\u67f1\u4f53\uff0c\u659c\u67f1\u4f53\u3002
\u67f1\u4f53\u4f53\u79ef\u8ba1\u7b97\u516c\u5f0f\uff1aV=Sh\uff08V\u4e3a\u67f1\u4f53\u4f53\u79ef\uff0cS\u4e3a\u5e95\u9762\u9762\u79ef\uff0ch\u4e3a\u67f1\u4f53\u7684\u9ad8\uff09
\u9525\u4f53\uff1a
\u690e\u4f53\u662f\u6307\u5305\u62ec\u5706\u9525\u3001\u68f1\u9525\u7b49\u5728\u5185\u7684\u7a7a\u95f4\u7acb\u4f53\u56fe\u5f62\uff0c\u7531\u5706\u7684\u6216\u5176\u5b83\u5c01\u95ed\u5e73\u9762\u57fa\u5e95\u4ee5\u53ca\u7531\u6b64\u57fa\u5e95\u8fb9\u754c\u4e0a\u5404\u70b9\u8fde\u5411\u4e00\u516c\u5171\u9876\u70b9\u7684\u7ebf\u6bb5\u6240\u5f62\u6210\u7684\u9762\u6240\u9650\u5b9a\u3002
\u9525\u4f53\u7684\u4f53\u79ef=\u5e95\u9762\u79ef\u00d7\u9ad8\u00d71/3
\u4e09\u89d2\u4f53\u53c8\u88ab\u6210\u4e3a\u4e09\u68f1\u9525\uff0c\u8ba1\u7b97\u516c\u5f0f\u4e3a\uff1a
h\u4e3a\u5e95\u9ad8\uff08\u6cd5\u7ebf\u957f\u5ea6\uff09\uff0cA\u4e3a\u5e95\u9762\u9762\u79ef\uff0cV\u4e3a\u4f53\u79ef\uff0cL\u4e3a\u659c\u9ad8\uff0cC\u4e3a\u68f1\u9525\u5e95\u9762\u5468\u957f\u3002
\u4e09\u68f1\u9525\u68f1\u9525\u7684\u4fa7\u9762\u5c55\u5f00\u56fe\u662f\u75314\u4e2a\u4e09\u89d2\u5f62\u7ec4\u6210\u7684\uff0c\u5c55\u5f00\u56fe\u7684\u9762\u79ef\uff0c\u5c31\u662f\u68f1\u9525\u7684\u4fa7\u9762\u79ef\uff0c\u5219 \uff1a(\u5176\u4e2dSi,i= 1,2\u4e3a\u7b2ci\u4e2a\u4fa7\u9762\u7684\u9762\u79ef\uff09
S\u5168=S\u68f1\u9525\u4fa7+S\u5e95
S\u6b63\u4e09\u68f1\u9525=1/2CL+S\u5e95
V=S(\u5e95\u9762\u79ef)\u00b7H(\u9ad8)\u00f73
\u62d3\u5c55\u8d44\u6599
\uff08\u9762\u79ef=\u5e95\u00d7\u9ad8\u00f72\u3002\u5176\u4e2d\uff0ca\u662f\u4e09\u89d2\u5f62\u7684\u5e95\uff0ch\u662f\u5e95\u6240\u5bf9\u5e94\u7684\u9ad8\uff09\u6ce8\u91ca\uff1a\u4e09\u8fb9\u5747\u53ef\u4e3a\u5e95\uff0c\u5e94\u7406\u89e3\u4e3a\uff1a\u4e09\u8fb9\u4e0e\u4e4b\u5bf9\u5e94\u7684\u9ad8\u7684\u79ef\u7684\u4e00\u534a\u662f\u4e09\u89d2\u5f62\u7684\u9762\u79ef\u3002\u8fd9\u662f\u9762\u79ef\u6cd5\u6c42\u7ebf\u6bb5\u957f\u5ea6\u7684\u57fa\u7840\u3002
\uff08\u5176\u4e2d\uff0c\u4e09\u4e2a\u89d2\u4e3a\u2220A\uff0c\u2220B\uff0c\u2220C\uff0c\u5bf9\u8fb9\u5206\u522b\u4e3aa\uff0cb\uff0cc\u3002\u53c2\u89c1\u4e09\u89d2\u51fd\u6570\uff09
(l\u4e3a\u9ad8\u6240\u5728\u8fb9\u4e2d\u4f4d\u7ebf\uff09
\uff08\u6d77\u4f26\u516c\u5f0f\uff09\uff0c\u5176\u4e2d
\u79e6\u4e5d\u97f6\u516c\u5f0f\uff08\u4e0e\u6d77\u4f26\u516c\u5f0f\u7b49\u4ef7\uff09
\u53c2\u8003\u8d44\u6599\uff1a\u767e\u5ea6\u767e\u79d1-\u4e09\u89d2\u5f62
\u53c2\u8003\u8d44\u6599\uff1a\u767e\u5ea6\u767e\u79d1-\u4e09\u68f1\u9525
绛旓細杩欎釜鍙笁瑙掓煴锛屼綋绉瓑浜庡簳闈㈢Н涔樹互楂橈紝鍗充笁瑙掑舰闈㈢Н涔樹互楂
绛旓細绔嬫柟浣撳叾瀹炲氨鏄鏂逛綋鐨勫埆绉帮紝鑰屾湁涓夎褰㈢殑鍙浣銆傛鏂逛綋鍜屽渾鏌变綋銆侀暱鏂逛綋鐨勫尯鍒涓嬶細1銆佸舰鐘朵笉鍚 绔嬫柟浣撴槸鐢卞叚涓鏂逛綋缁勬垚鐨勶紝鑰岄暱鏂逛綋鍙兘鍏釜闈㈤兘鏄暱鏂瑰舰锛屼篃鍙兘鍥涗釜闈㈡槸闀挎柟褰紝涓や釜闈㈡槸姝f柟褰傚渾鏌变綋鏄湁涓や釜搴曢潰鍜屼竴涓晶闈㈢粍鎴愮殑锛屽叾涓紝杩欎袱涓簳闈㈡槸鍦嗗舰銆2銆佷綋绉绠楁柟娉曚笉鍚 ...
绛旓細涓夎褰㈠搴旂殑绔嬩綋鍥惧舰绉颁负妞庝綋锛屾浣撴槸涓绉嶅簳闈负涓夎褰紝渚ч潰涓轰笁瑙掑舰鎴栧洓杈瑰舰鐨勭珛浣撳浘褰
绛旓細绔嬫柟浣撳叾瀹炲氨鏄鏂逛綋鐨勫埆绉帮紝鑰屾湁涓夎褰㈢殑鍙浣銆傛鏂逛綋鍜屽渾鏌变綋銆侀暱鏂逛綋鐨勫尯鍒涓嬶細褰㈢姸涓嶅悓绔嬫柟浣撴槸鐢卞叚涓鏂逛綋缁勬垚鐨勩傝岄暱鏂逛綋鍙兘鍏釜闈㈤兘鏄暱鏂瑰舰锛屼篃鍙兘鍥涗釜闈㈡槸闀挎柟褰紝涓や釜闈㈡槸姝f柟褰傚渾鏌变綋鏄湁涓や釜搴曢潰鍜屼竴涓晶闈㈢粍鎴愮殑锛屽叾涓紝杩欎袱涓簳闈㈡槸鍦嗗舰銆傚熀鏈俊鎭細绔嬫柟浣擄紝涔熺О姝f柟浣...
绛旓細閲戝瓧濉鐨勫舰鐘舵槸涓夎浣
绛旓細鍏朵綑涓よ竟鏃嬭浆360搴﹁屾垚鐨勬洸闈㈡墍鍥存垚鐨勫嚑浣浣撳彨鍋鍦嗛敟銆傛棆杞酱鍙仛鍦嗛敟鐨勮酱銆 鍨傜洿浜庤酱鐨勮竟鏃嬭浆鑰屾垚鐨勬洸闈㈠彨鍋氬渾閿ョ殑搴曢潰銆備笉鍨傜洿浜庤酱鐨勮竟鏃嬭浆鑰屾垚鐨勬洸闈㈠彨鍋氬渾閿ョ殑渚ч潰銆傛棤璁烘棆杞埌浠涔堜綅缃紝涓嶅瀭鐩翠簬杞寸殑杈归兘鍙仛鍦嗛敟鐨勬瘝绾裤傦紙杈规槸鎸囩洿瑙涓夎褰袱涓棆杞竟锛夈
绛旓細鍗婂渾妞鏄竴绉嶅嚑浣曞浘褰紝鐢变竴涓崐鍦嗗拰涓涓皷閿ラ潰缁勬垚銆傚畠鐨勫悕绉版潵鑷簬瀹冪殑褰㈢姸锛鍥犱负瀹冪湅璧锋潵鍍忎竴涓崐鍦嗗拰涓涓皷閿ョ殑缁撳悎浣撱傚崐鍦嗘鍦ㄦ暟瀛﹀拰鍑犱綍鏂归潰閮芥湁骞挎硾鐨勫簲鐢紝鐗瑰埆鏄湪寤虹瓚鍜屽伐绋嬪涓傚崐鍦嗘鐨勪竴涓噸瑕佺壒鐐规槸鍏朵笂琛ㄩ潰鏄竴涓崐鍦嗭紝涓嬮儴鍒欐槸涓涓皷閿ラ潰銆傜敱浜庡叾鐗规畩鐨勫舰鐘讹紝鍗婂渾妞庡湪鍒堕犲缓绛戝拰...
绛旓細涓夎浣鐨勪綋绉叕寮忔槸锛歏=H/3*[S+S'+鈭(S*S)]銆備笁瑙掍綋鏄笁妫遍敟閿ヤ綋鐨勪竴绉嶏紝鍑犱綍浣擄紝鐢卞洓涓笁瑙掑舰缁勬垚銆傚浐瀹氬簳闈㈡椂鏈変竴涓《鐐癸紝涓嶅浐瀹氬簳闈㈡椂鏈夊洓涓《鐐广(姝d笁妫遍敟涓嶇瓑鍚屼簬姝e洓闈綋锛屾鍥涢潰浣撳繀椤绘瘡涓潰閮芥槸姝d笁瑙掑舰锛夈傚嚑浣曚綋(geometricsolid)浜︾О绔嬩綋锛屾槸绔嬩綋鍑犱綍鐨勫熀鏈蹇典箣涓銆傚嚑浣曚綋姒傚康...
绛旓細涓婁笅搴曢潰鏄浉鍙嶇殑涓夎褰㈢殑妞庝綋鐨勭珛浣撳浘鏄粈涔鏍峰晩 鎴戜滑鏋勬兂鍑轰簡涓涓笂搴曢潰鍜屼笅搴曢潰閮芥槸鍏ㄧ瓑鐨勪笁瑙掑舰,渚ч潰鏄敱涓婂簳闈㈢殑涓夎褰㈢殑涓や釜椤剁偣閾炬帴涓嬪簳闈㈢殑涓夎褰㈢殑姝e鐨勯《鐐,鍚岀悊,涓嬪簳闈㈢殑涓夎褰㈢殑涓ゆ潯杈逛篃閾炬帴涓婂簳闈㈡瀵圭潃鐨勯偅涓笁瑙掑舰... 鎴戜滑鏋勬兂鍑轰簡涓涓笂搴曢潰鍜屼笅搴曢潰閮芥槸鍏ㄧ瓑鐨勪笁瑙掑舰,渚ч潰鏄敱涓婂簳...
绛旓細寰楀埌浠栦滑鐨勪綋绉槸鐩哥瓑鐨勶紝鑰屾讳綋绉紝灏辨槸骞宠鍏潰浣撶殑浣撶Н绛変簬搴曢潰绉*瀵瑰簲鐨勯珮锛屾墍浠ョ洿瑙涓夎浣鐨勪綋绉=搴曢潰绉楅珮梅3銆傜洿瑙掍笁瑙掍綋鏄洓闈綋鐨勪竴绉嶃傚钩闈笂鐨勫杈瑰舰鑷冲皯涓夋潯杈癸紝绌洪棿鐨勫嚑浣曚綋鑷冲皯鍥涗釜闈紝鎵浠ュ洓闈綋鏄┖闂存渶绠鍗曠殑鍑犱綍浣撱傚洓闈綋鍙堢О涓夋1閿ャ備笁妫遍敟鏈夊叚鏉℃1闀匡紝鍥涗釜椤剁偣锛屽洓涓潰銆