一个用水泥抹成的蓄水池如下图。水池底面的厚度与壁的厚度相同。 高2.25M 底面直径4.5M 厚度25CM ,建 一个储水池如右图,水池底的厚度与壁的厚度相同(厚度50CM,...
\u4e00\u4e2a\u7528\u6c34\u6ce5\u62b9\u6210\u7684\u84c4\u6c34\u6c60\uff0c\u5982\u4e0b\u56fe\uff08\u5728\u9898\u4e2d\uff09\u3002\u6c34\u6c60\u5e95\u7684\u539a\u5ea6\u4e0e\u58c1\u7684\u539a\u5ea6\u76f8\u540c\u3002\u6c34\u6c60\u5185\u534a\u5f84\u5f84\uff1a\uff084.5-2\u00d70.25\uff09\u00f72=2\uff08\u7c73\uff09
\u6700\u591a\u76db\u6c34\uff1a2²\u00d73.14\u00d72.25=28.26\uff08\u7c73³\uff09
(1)\u6c34\u6c60\u6df1\u5ea6=2.5-0.5=2\uff08\u7c73\uff09\uff1b \u5e95\u9762\u5185\u76f4\u5f84=4-0.5-0.5=3\uff08\u7c73\uff09\uff1b \u5e95\u9762\u5185\u534a\u5f84=3/2=1.5\uff08\u7c73\uff09\uff1b\u5e95\u9762\u9762\u79ef=1.5*1.5*pi\uff08\u5706\u5468\u7387\uff0c\u6253\u4e0d\u51fa\u6765\uff09=7.065\uff08\u5e73\u65b9\u7c73\uff09\uff1b\u5bb9\u79ef=7.065*2=14.1\uff08\u7acb\u65b9\u7c73\uff09\u3002
\uff082\uff09\u4fef\u89c6\u56fe\u9762\u79ef2*2*pi-1.5*1.5*pi=5.495\uff08\u5e73\u65b9\u7c73\uff09\uff1b\u4e0a\u534a\u90e8\u5206\u4f53\u79ef=5.495*2=10.99\uff08\u7acb\u65b9\u7c73\uff09\uff1b\u5e95\u9762\u79ef=2*2*pi=12.56\uff08\u5e73\u65b9\u7c73\uff09\uff1b\u4e0b\u534a\u90e8\u5206\u4f53\u79ef=12.56*0.5=6.28\uff08\u7acb\u65b9\u7c73\uff09\uff1b\u603b\u4f53\u79ef\uff08\u5373\u7528\u6599\uff09=6.28+10.99=17.27\uff08\u7acb\u65b9\u7c73\uff09\u3002
\uff083\uff09\u5e95\u9762\u5468\u957f=3*pi=9.42\uff08\u7c73\uff09\uff1b\u4fa7\u9762\u79ef=9.42*2=18.84\uff08\u5e73\u65b9\u7c73\uff09\uff1b\u603b\u9762\u79ef=18.84+7.065=25.905\uff08\u5e73\u65b9\u7c73\uff09\u3002
\u6ca1\u6709\u56fe\uff0c\u6bd4\u8f83\u9ebb\u70e6\uff0c\u8bf7\u81ea\u5df1\u518d\u68c0\u67e5\u4e0b\u5566~ \uff1a-\uff09
第二,注意单位名称的统一
4.5m=450cm 2.25m=225cm
小圆半径=450/2 - 25 =200cm 大圆半径=450/2 =225cm
底面积= (225*225-200*200)*π=33362.5 平方厘米
体积= 33362.5*225=7506562.5 立方厘米 =7.5065625 立方米
绛旓細浣撶Н= 33362.5*225=7506562.5 绔嬫柟鍘樼背 =7.5065625 绔嬫柟绫
绛旓細3.14*锛2.25+0.25锛夊钩鏂*2.25-3.14*2.25骞虫柟*2.25=3.14*锛2.5骞虫柟-2.25骞虫柟锛*2.25=3.14*锛6.25-5.0625锛*2.25=3.14*1.1875*2.25=8.3896875绔嬫柟绫冲洜涓烘病鏈夊浘鎴戝彧鑳借繖涔堝洖绛斾綘锛屽鏋滅洿寰4.5鏄寘鎷簡0.25鐨勮瘽锛屽氨鎶婂垪寮忔敼鎴3.14*2.25骞虫柟*2.25-3.14*(2.25-0.25...
绛旓細棣栧厛闇瑕佽绠楀嚭钃勬按姹犵殑鎬昏〃闈㈢Н锛岀劧鍚庡啀鍑忓幓姹犲簳鐨勯潰绉紝寰楀埌闇瑕鎶涓婃按娉ョ(姘存偿鐨閮ㄥ垎闈㈢Н銆傛睜瀛愮殑鎬昏〃闈㈢Н = 搴曢潰绉 + 4涓晶闈㈢Н 搴曢潰绉 = 闀 脳 瀹 = 10m 脳 8m = 80骞虫柟绫 渚ч潰绉 = 楂 脳 鍛ㄩ暱 = 3m 脳 (10m + 8m) = 54骞虫柟绫 姹犲瓙鐨勬昏〃闈㈢Н = 搴曢潰绉 + 4涓晶闈㈢Н = 80...
绛旓細鍏蜂綋杩囩▼濡傚浘鎵绀猴紝璇峰拷鐣ュ瓧浣撻毦鐪
绛旓細搴曢儴鐨勫懆闀垮氨锛3.14脳16锛50.24绫筹紝鍙堝洜涓钃勬按姹楂樹负4绫筹紝鎵浠ヤ晶闈㈢殑闈㈢Н锛50.24脳4锛200.96骞虫柟绫炽傝繖鏍凤紝灏辨妸鎵鏈夐渶瑕鎶规按娉ョ殑鍦版柟鐨勯潰绉眰鍑烘潵浜嗭紝鎵浠ユ垜浠彧闇瑕佺敤200.96+20.96锛401.92骞虫柟绫筹紝灏卞彲浠ョ煡閬撹缁欒繖涓渾鏌卞舰钃勬按姹犲湪鍛ㄥ洿鍜屽簳閮ㄦ姽涓婃按娉ワ紝闇瑕鎶圭殑鍦版柟灏辨槸401.92骞虫柟绫炽
绛旓細鎶规按娉ョ殑闈㈢Н灏辨槸琛ㄩ潰绉 8脳6.8+8脳2.5脳2+2.5脳6.8脳2=128.4(骞虫柟绫筹級8脳6.8脳2.5=136锛堢珛鏂圭背锛=136锛堝惃锛
绛旓細瀹圭Н锛夎В锛4²脳蟺脳5=80蟺=251.2锛坢³锛=251.2鍚 绛旓細杩欎釜钃勬按姹犺兘钃勬按251.2鍚ㄣ(2) 鍒嗘瀽锛氬嵆姹傝繖涓钃勬按姹犵殑渚ч潰绉+1涓簳闈㈢Н 瑙o細4脳2脳蟺脳5+4²脳蟺=56蟺=175.84锛坢²锛夌瓟锛鎶规按娉ョ殑闈㈢Н鏄175.84骞虫柟绫炽傚笇鏈涘浣犳湁鎵甯姪~~~娆㈣繋杩介棶 ...
绛旓細瑙o細鐢遍鎰忓彲鐭ワ紝钃勬按姹犻暱20绫筹紝瀹芥槸20梅2=10绫筹紝楂2.5绫筹紝鍒欏垪寮忚绠楀涓嬶細20脳10+20脳2.5脳2+10脳2.5脳2=350锛堝钩鏂圭背锛夌瓟锛氳繖涓钃勬按姹犳姽姘存偿鐨闈㈢Н鏄350骞虫柟绫炽
绛旓細涓涓暱鏂逛綋钃勬按姹,闀8绫,瀹5绫,娣4.2绫炽傛妸搴曢潰鍜屽洓澹鎶涓姘存偿,闈㈢Н鏈夊灏戝钩鏂圭背 鎴戞潵绛 1涓洖绛 #鐑# 鏌垮瓙鑴辨订鏂规硶鏈夊摢浜?鑾畻绻4 2014-03-30 路 TA鑾峰緱瓒呰繃240涓禐 鐭ラ亾绛斾富 鍥炵瓟閲:106 閲囩撼鐜:80% 甯姪鐨勪汉:29.7涓 鎴戜篃鍘荤瓟棰樿闂釜浜洪〉 鍏虫敞 灞曞紑鍏ㄩ儴 瑙:S=8*5+2*(...
绛旓細绛旓細涓鍏辫鐢ㄦ按娉3014.4鍗冨厠銆傝В鏋愯繃绋嬶細1銆佸渾鏌卞舰鐨勮搫姘存睜鍥涘懆鍙婂簳閮鎶规按娉姹傚緱鏄〃闈㈢Н銆傚嵆渚ч潰绉拰搴曢潰绉箣鍜 2銆佸凡鐭ュ簳闈㈠懆闀挎槸25.12绫筹紝鏍规嵁鍏紡C搴曢潰鍛ㄩ暱锛澫d锛2蟺r锛屽彲鐭ュ渾鏌卞舰钃勬按姹犵殑鍗婂緞 r=25.12梅3.14梅2=4绫 3銆佸渾鏌辩殑渚ч潰绉=搴曢潰鍛ㄩ暱x楂=2蟺rh=25.12x4=100.48 4銆佸簳...