六年级数学教科书下册表面积`侧面积体积公式计算 急!!! 六年级下册数学公式 123
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\u5706\u67f1\u4f53\u7684\u8ba1\u7b97\u516c\u5f0f\u5982\u4e0b:
\u5706\u67f1\u4f53\u4fa7\u9762\u79ef\u516c\u5f0f\uff1a\u4fa7\u9762\u79ef=\u5e95\u9762\u5468\u957f\u00d7\u9ad8 S\u4fa7\uff1dC\u5e95\u00d7h
\u5706\u67f1\u4f53\u7684\u8868\u9762\u79ef\u516c\u5f0f\uff1a\u8868\u9762\u79ef=2\u03c0r2+\u5e95\u9762\u5468\u957f\u00d7\u9ad8 S\u8868\uff1dS\u5e95+C\u5e95\u00d7h
\u5706\u67f1\u4f53\u7684\u4f53\u79ef\u516c\u5f0f\uff1a\u4f53\u79ef=\u5e95\u9762\u79ef\u00d7\u9ad8 V\u5706\u67f1\uff1dS\u5e95\u00d7h
\u5706\u9525\u4f53\u7684\u4f53\u79ef=1/3\u00d7\u5e95\u9762\u9762\u79ef\u00d7\u9ad8 V\u5706\u9525\uff1d1/3\u00d7S\u5e95\u00d7h
2 、正方体 V:体积 a:棱长 表面积=棱长×棱长×6 S表=a×a×6 体积=棱长×棱长×棱长 V=a×a×a
3 、长方形
C周长 S面积 a边长
周长=(长 宽)×2
C=2(a b)
面积=长×宽
S=ab
4 、长方体
V:体积 s:面积 a:长 b: 宽 h:高
(1)表面积(长×宽 长×高 宽×高)×2
S=2(ab ah bh)
(2)体积=长×宽×高
V=abh
5 三角形
s面积 a底 h高
面积=底×高÷2
s=ah÷2
三角形高=面积 ×2÷底
三角形底=面积 ×2÷高
6 平行四边形
s面积 a底 h高
面积=底×高
s=ah
7 梯形
s面积 a上底 b下底 h高
面积=(上底 下底)×高÷2
s=(a b)× h÷2
8 圆形
S面积 C周长 ∏ d=直径 r=半径
(1)周长=直径×∏=2×∏×半径
C=∏d=2∏r
(2)面积=半径×半径×∏
9 圆柱体
v:体积 h:高 s;底面积 r:底面半径 c:底面周长
(1)侧面积=底面周长×高
(2)表面积=侧面积 底面积×2
(3)体积=底面积×高
（4）体积＝侧面积÷2×半径
10 圆锥体
v:体积 h:高 s;底面积 r:底面半径
体积=底面积×高÷3
什么形状的图形？
绛旓細鍦嗘煴浣琛ㄩ潰绉=渚ч潰绉+搴曢潰绉2 =3.14脳鐩村緞脳楂+3.14脳鍗婂緞²脳2銆傚渾鏌辩殑琛ㄩ潰绉=渚ч潰绉+涓や釜搴曢潰绉紙S琛=S渚+2S搴曪級銆傚渾鏌辩殑渚ч潰绉=搴曢潰鐨勫懆闀棵楅珮锛屼篃灏辨槸 S渚=2蟺rh銆傚渾鏌辩殑搴曢潰绉=鍦嗙殑闈㈢Н锛屼篃灏辨槸S搴=蟺r2銆傚渾鏌辩殑涓や釜鍦嗛潰鍙簳闈紝鍛ㄥ洿鐨勯潰鍙晶闈紝涓涓渾鏌变綋鏄敱涓や釜...
绛旓細(1)渚ч潰绉=搴曢潰鍛ㄩ暱脳楂 (2)琛ㄩ潰绉=渚闈㈢Н 搴曢潰绉2 (3)浣撶Н=搴曢潰绉楅珮 锛4锛変綋绉紳渚ч潰绉2脳鍗婂緞 10 鍦嗛敟浣 v:浣撶Н h:楂 s;搴曢潰绉 r:搴曢潰鍗婂緞 浣撶Н=搴曢潰绉楅珮梅3
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绛旓細1銆佸渾鏌辩殑搴闈㈢Н=鍦嗗懆鐜嚸楀簳闈㈠崐寰勭殑骞虫柟锛2銆佸渾鏌辩殑渚ч潰绉=搴曢潰鍛ㄩ暱脳楂=鍦嗗懆鐜嚸楃洿寰劽楅珮锛3銆佸渾鏌辩殑琛ㄩ潰绉=2脳鍦嗘煴鐨勫簳闈㈢Н+渚ч潰绉=2脳鍦嗗懆鐜嚸楀崐寰勭殑骞虫柟+鍦嗗懆鐜噚鐩村緞脳楂樸
绛旓細鍦嗛敟鐨琛ㄩ潰绉=搴曢潰绉+渚ч潰绉 S=蟺r鐨勫钩鏂+蟺rl 锛堟敞l=姣嶇嚎锛夊渾閿ョ殑浣撶Н=1/3SH 鎴 1/3蟺r鐨勫钩鏂筯 鍦嗘煴 1.鍦嗘煴鐨勪袱涓渾闈㈠彨搴曢潰,鍛ㄥ洿鐨勯潰鍙晶闈,涓涓渾鏌变綋鏄敱涓や釜搴曢潰鍜屼竴涓晶闈㈢粍鎴愮殑.2.鍦嗘煴浣撶殑涓や釜搴曢潰鏄畬鍏ㄧ浉鍚岀殑涓や釜鍦嗛潰.涓や釜搴曢潰涔嬮棿鐨勮窛绂绘槸鍦嗘煴浣撶殑楂.3.鍦嗘煴浣撶殑渚ч潰鏄竴...
绛旓細姝ｆ柟褰琛ㄩ潰绉锛歴=6涔橈紙杈逛箻杈癸級鍦嗘煴琛ㄩ潰绉 锛歴= 鍦嗘煴搴曢潰绉疿2 + 鍦嗘煴渚ч潰绉 搴曢潰绉氨鏄渾褰㈤潰绉叕寮 蟺R^2 渚ч潰绉 = 搴曢潰鍛ㄩ暱X楂 = 2蟺R路H 鍦嗛敟鐨勮〃闈㈢Н锛歴=鍦嗛敟鐨勪晶闈㈢Н+搴曢潰鍦嗙殑闈㈢Н 鍦嗛敟浣撶殑渚ч潰绉=蟺RL 鍦嗛敟浣撶殑鍏ㄩ潰绉=蟺Rl+蟺R2 蟺涓哄渾鍛ㄧ巼3.14 R涓哄渾閿ヤ綋搴曢潰鍦嗙殑鍗婂緞 L涓...
绛旓細闀挎柟褰㈤暱鏄8cm,瀹界瓑浜庡簳闈㈠懆闀2蟺 cm.渚ч潰绉=灞曞紑闀挎柟褰㈢殑闈㈢Н,涓16蟺骞虫柟鍘樼背 琛ㄩ潰绉=渚ч潰绉+搴曢潰绉=16蟺+蟺+蟺=18蟺骞虫柟鍘樼背 鏈涢噰绾筹紒璋㈣阿锛
绛旓細鏈缇庣敎鐢滃湀 锛屼綘濂斤細搴曢潰绉负锛坁2琛ㄧず骞虫柟锛夛細3.14脳锛4梅2锛塣2锛12.56锛堝钩鏂圭背锛渚ч潰绉涓猴細3.14脳4脳3锛37.68锛堝钩鏂圭背锛夎创鐡风墖瑕侊細12.56锛37.68锛50.24锛堝钩鏂圭背锛
绛旓細鍏堢畻渚ч潰绉锛岀敤鍏紡搴曢潰鍛ㄩ暱涔樹互楂18.84*5=94.2 鍐嶇畻琛ㄩ潰绉锛岄渶瑕佸垰鎵嶇畻鐨勪晶闈㈢Н鍜屽簳闈㈢Н锛岄偅涔堢幇鍦ㄥ啀绠楀簳闈㈢Н銆傜敱浜庡簳闈㈠懆闀挎槸18.84锛屽彲绠楀嚭鍗婂緞鏄18.84闄や互2娲=3.鎵浠ュ簳闈㈢Н=19.26.閭ｄ箞琛ㄩ潰绉=94.2+2*19.26=132.72
