一个圆柱形蓄水池，从里面量地面周长31.4m，深2.4m，它的内壁与底面抹上水泥，抹水泥部分面积是 一个圆柱体形的蓄水池，从里面量底面周长31.4米，深2.4米...
\u4e00\u4e2a\u5706\u67f1\u5f62\u84c4\u6c34\u6c60\uff0c\u4ece\u91cc\u9762\u91cf\u5e95\u9762\u5468\u957f\u662f31.4\uff0c\u6df12\u7c73\uff0c\u5728\u5b83\u7684\u5185\u58c1\u4e0e\u5730\u9762\u4e00\u4e2a\u5706\u67f1\u5f62\u84c4\u6c34\u6c60\uff0c\u4ece\u91cc\u9762\u91cf\u5e95\u9762\u5468\u957f\u662f31.4\uff0c\u6df12\u7c73\uff0c\u5728\u5b83\u7684\u5185\u58c1\u4e0e\u5730\u9762\u62b9\u4e0a\u6c34\u6ce5\u3002
\u62b9\u6c34\u6ce5\u7684\u90e8\u5206\u9762\u79ef\u662f\u591a\u5c11\u5e73\u65b9\u7c73\uff1f
31.4\u00f73.14\u00f72=5
31.4x2+3.14x5x5
=62.8+78.5
=141.3\u5e73\u65b9\u7c73
2.\u84c4\u6c34\u6c60\u80fd\u84c4\u6c34\u591a\u5c11\u5428\uff1f\uff08\u6bcf\u7acb\u65b9\u6c34\u91cd\u4e00\u5428\uff09
3.14x5x5x2=157\u7acb\u65b9\u7c73
157x1=157\u5428
\uff081\uff09\u6c34\u6c60\u7684\u4fa7\u9762\u79ef\uff1a31.4\u00d72.4=75.36\uff08\u5e73\u65b9\u7c73\uff09\uff1b\u6c34\u6c60\u7684\u5e95\u9762\u79ef\uff1a3.14\u00d7\uff0831.4\u00f73.14\u00f72\uff092\uff0c=3.14\u00d752\uff0c=3.14\u00d725\uff0c=78.5\uff08\u5e73\u65b9\u7c73\uff09\uff1b\u62b9\u6c34\u6ce5\u90e8\u5206\u7684\u9762\u79ef\u662f\uff1a75.36+78.5=153.86\uff08\u5e73\u65b9\u7c73\uff09\uff1b\u7b54\uff1a\u62b9\u6c34\u6ce5\u90e8\u5206\u7684\u9762\u79ef\u662f153.86\u5e73\u65b9\u7c73\uff0e\uff082\uff09\u6c34\u6c60\u7684\u4f53\u79ef\uff1a3.14\u00d752\u00d72.4=3.14\u00d725\u00d72.4=188.4\uff08\u7acb\u65b9\u7c73\uff09\uff1b\u7b54\uff1a\u84c4\u6c34\u6c60\u7684\u5bb9\u79ef\u662f188.4\u7acb\u65b9\u7c73\uff0e
31.4÷(2×3.14)=55²×3.14+31.4×2.4=78.5+75.36=153.86平方米
如果满意记得采纳哦！
你的好评是我前进的动力。
(*^__^*) 嘻嘻……
我在沙漠中喝着可口可乐，唱着卡拉ok，骑着狮子赶着蚂蚁，手中拿着键盘为你答题！！！
底面半径是
31.4÷3.14÷2=5（米）
底面积是
5²×3.14=78.5（平方米）
侧面积是
31.4×2.4=75.36（平方米）
抹水泥的面积是
78.5+75.36=153.86（平方米）
31.4÷(2×3.14)=5
5²×3.14+31.4×2.4=78.5+75.36=153.86平方米
如果满意记得采纳哦！
你的好评是我前进的动力。
我服了你，教你最简单的你把它想成长方形长31.4宽2.4,直接剩不就完了
去，赶紧给你数学老师打电话，问他，不给讲明白不让他睡觉
你太可爱了吧，这个小学学的吧，呵呵
绛旓細31.4梅(2脳3.14)=5 5²脳3.14+31.4脳2.4=78.5+75.36=153.86骞虫柟绫 濡傛灉婊℃剰璁板緱閲囩撼鍝︼紒浣犵殑濂借瘎鏄垜鍓嶈繘鐨勫姩鍔涖(*^__^*) 鍢诲樆鈥︹︽垜鍦ㄦ矙婕犱腑鍠濈潃鍙彛鍙箰锛屽敱鐫鍗℃媺ok锛岄獞鐫鐙瓙璧剁潃铓傝殎锛屾墜涓嬁鐫閿洏涓轰綘绛旈锛侊紒锛
绛旓細瑙ｉ鎬濊矾锛氾紙1锛夋牴鎹渾鏌辩殑渚ч潰绉叕寮忓拰鍦嗙殑闈㈢Н鍏紡锛屾眰鍑哄渾鏌辩殑渚ч潰绉姞涓涓簳闈㈢Н鍗冲彲锛岋紙2锛夋牴鎹渾鏌辩殑浣撶Н鍏紡锛屾眰鍑鍦嗘煴褰㈡按姹涓按鐨勪綋绉嵆鍙眰鍑洪噸閲忥紟锛1锛3.14脳20脳5+3.14脳锛20梅2锛2锛=314+314锛=628锛堝钩鏂圭背锛夛紝绛旓細鎶规按娉ラ儴鍒嗙殑闈㈢Н鏄628骞虫柟绫筹紟锛2锛3.14脳锛20梅2锛2脳5...
绛旓細3.14脳锛6梅2锛 2 脳2.5 =3.14脳9脳2.5 =70.65锛堢珛鏂圭背锛夛紝 绛旓細钃勬按姹鍐呮湁姘70.65绔嬫柟鍘樼背锛 鏁呯瓟妗堜负锛70.65锛
绛旓細闂锛涓涓渾鏌卞舰钃勬按姹狅紝浠庨噷闈㈤噺搴闈㈢洿寰勬槸20绫筹紝娣变负5绫筹紝瑕佸湪杩欎釜钃勬按姹犵殑鍥涘懆鍜屽簳闈㈡姽涓婃按娉ワ紝鎶规按娉ラ儴鍒嗙殑闈㈢Н鏄灏戝钩鏂圭背锛熻В锛毾脳20脳5+蟺脳锛20梅2锛²=100蟺+100蟺 =200蟺锛堝钩鏂圭背锛夎嫢蟺=3.14锛屽垯200蟺=628 绛旓細鎶规按娉ラ儴鍒嗙殑闈㈢Н鏄628骞虫柟绫筹紟...
绛旓細搴曢潰鍗婂緞=31.4梅3.14梅2=5锛堢背锛夊簳闈㈢Н=3.14脳5²=78.5锛堝钩鏂圭背锛変晶闈㈢Н=31.4脳2=62.8锛堝钩鏂圭背锛夋姽姘存偿闈㈢Н=62.8+78.5=141.3锛堝钩鏂圭背锛
绛旓細鍗鍦伴潰绉=搴曢潰绉紝鏄細10脳10脳3.14=314锛堝钩鏂圭背锛
绛旓細瑙ｏ細鍗婂緞=10绫 搴曢潰闈㈢Н=3.14脳10脳10=314骞虫柟绫 搴曢潰鍛ㄩ暱=3.14脳20=62.8绫 鍥涘懆闈㈢Н=62.8脳5=314骞虫柟绫 鎵浠ユ姽姘存偿閮ㄥ垎鐨勯潰绉=314+314=628骞虫柟绫 濡傛灉鏈鏈変粈涔堜笉鏄庣櫧鍙互杩介棶锛屽鏋滄弧鎰忚鐐瑰嚮鍙充笂瑙掑ソ璇勫苟鈥滈噰绾充负婊℃剰鍥炵瓟鈥濆鏋滄湁鍏朵粬闂璇烽噰绾虫湰棰樺悗锛屽彟澶栧彂骞剁偣鍑绘垜鐨勫ご鍍忓悜鎴戞眰鍔╋紝...
绛旓細涓涓渾鏌卞舰鐨钃勬按姹狅紝浠庨噷闈㈤噺锛屽簳闈㈢洿寰勬槸8绫筹紝娣辨槸3.5绫炽傜幇鍦ㄨ鍦ㄨ繖涓搫姘存睜鐨勫簳闈㈠拰鍥涘懆鎶逛笂涓灞傛按娉ラ潰绉槸澶氬皯骞虫柟绫筹紵鍦伴潰鍛ㄩ暱= 8蟺 搴曢潰绉= 16蟺 渚ч潰绉 =鍦伴潰鍛ㄩ暱 x 3.5 = 28蟺 瑕佸湪杩欎釜钃勬按姹犵殑搴曢潰鍜屽洓鍛ㄦ姽涓婁竴灞傛按娉ラ潰绉槸 = (28+16) 蟺 =44 蟺 骞虫柟绫 ...
绛旓細瑙ｏ細銆1銆姘存睜鐨勪晶闈㈢Н锛31.4脳2.4=75.36锛堝钩鏂圭背锛夛紱姘存睜鐨勫簳闈㈢Н锛3.14脳锛31.4梅3.14梅2锛2锛=3.14脳52锛=3.14脳25锛=78.5锛堝钩鏂圭背锛夛紱鎶规按娉ラ儴鍒嗙殑闈㈢Н鏄細75.36+78.5=153.86锛堝钩鏂圭背锛夛紱绛旓細鎶规按娉ラ儴鍒嗙殑闈㈢Н鏄153.86骞虫柟绫筹紟銆2銆戞按姹犵殑浣撶Н锛3.14脳5^2脳2.4锛=3....
绛旓細14梅2锛²=3.14脳4 =12.56锛堝钩鏂圭背锛夌瓟锛氳繖涓搫姘存睜鐨勫崰鍦伴潰绉槸12.56骞虫柟绫筹紱2銆鍦嗘煴褰㈣搫姘存睜鐨勪綋绉細3.14脳锛12.56梅3.14梅2锛²脳4 =3.14脳4脳4 =50.24锛堢珛鏂圭背锛夋瘡绔嬫柟绫虫按閲1鍚紝钃勬按姹犺兘钃勬按锛1脳50.24=50.24锛堝惃锛夌瓟锛氳繖涓搫姘存睜鐨勮搫姘撮噺鏄50.24鍚紟...
