所有图形表面积、体积、周长、面积的文字公式和字母公式?

超急的..拜托你们了!
2025-01-07 09:54:32
推荐回答(4个)
回答1:

正方形面积:axa 周长:ax4 长方形面积:axb 周长:(a+b)x2 梯形面积:(a+b)xh/2
圆形面积:兀xRxR 圆形周长:兀xd
正方体表面积:axax6 体积:axaxa
长方形表面积:(axb+bxc+axc)x2 体积 axbxh
圆柱体表面积:2x3.14xrxr+兀xdxh 体积:兀xrxrxh
圆锥体体积:兀xrxrxhx3分之1
球体的表面积=4πR^2
锥体的体积公式是: v=1/3sh(s为锥体的底面积,h为锥体的高)
棱台的体积公式:V=[S+S'+(SS')^(1/2)]h/3
圆台的体积公式:V=[S+S′+√(SS′)]h÷3=πh(R2+Rr+r2)/3
圆台的表面积公式:S=πr^2+πr′^2+πrl+πr′l=π(r^2+r′^2+rl+r′l)
r-上底半径
R-下底半径
h-高
棱柱:底乘以高
圆环 圆环周长:外圆的周长+内圆的周长(圆周率X(大直径+小直径))
圆环面积:外圆面积-内圆面积(圆周率X大半径的平方-圆周率X小半径的平方\圆周率X(大半径的平方-小半径的平方))
用字母表示:
S内+S外(∏R方)
S外—S内=∏(R方-r方)
还有第二种方法:
S=π[(R-r)×(R+r)]
R=大圆半径
r=小圆半径

梯形的
(上底+下底)×高÷2
用S表示梯形面积,a,b和h分别表示梯形的上底,下底和高,那么梯形面积公式用字母表示就是:S=(a+b)×h÷2,省略乘号就是S=(a+b)h÷2
因为2个完全一样的三角形可以拼成梯形,一个梯形也是1个三角形和一个平行四边形拼成的,2个完全一样的梯形可以拼成一个平行四边形。

回答2:

正方形面积:axa 周长:ax4 长方形面积:axb 周长:(a+b)x2 梯形面积:(a+b)xh/2
圆形面积:兀xRxR 圆形周长:兀xd
正方体表面积:axax6 体积:axaxa
长方形表面积:(axb+bxc+axc)x2 体积 axbxh
圆柱体表面积:2x3.14xrxr+兀xdxh 体积:兀xrxrxh
圆锥体体积:兀xrxrxhx3分之1
球体的表面积=4πR^2
锥体的体积公式是: v=1/3sh(s为锥体的底面积,h为锥体的高)
棱台的体积公式:V=[S+S'+(SS')^(1/2)]h/3
圆台的体积公式:V=[S+S′+√(SS′)]h÷3=πh(R2+Rr+r2)/3
圆台的表面积公式:S=πr^2+πr′^2+πrl+πr′l=π(r^2+r′^2+rl+r′l)
r-上底半径
R-下底半径
h-高
棱柱:底乘以高
圆环 圆环周长:外圆的周长+内圆的周长(圆周率X(大直径+小直径))
圆环面积:外圆面积-内圆面积(圆周率X大半径的平方-圆周率X小半径的平方\圆周率X(大半径的平方-小半径的平方))
用字母表示:
S内+S外(∏R方)
S外—S内=∏(R方-r方)
还有第二种方法:
S=π[(R-r)×(R+r)]
R=大圆半径
r=小圆半径

回答3:

正方形面积:axa 周长:ax4 长方形面积:axb 周长:(a+b)x2 梯形面积:(a+b)xh/2
圆形面积:兀xRxR 圆形周长:兀xd
正方体表面积:axax6 体积:axaxa
长方形表面积:(axb+bxc+axc)x2 体积 axbxh
圆柱体表面积:2x3.14xrxr+兀xdxh 体积:兀xrxrxh
圆锥体体积:兀xrxrxhx3分之1
其他的我不知道了! 请支持我吧!

回答4:

小学数学所有图形的周长,面积,体积,表面积公式
长方形的周长=(长+宽)×2
C
=
(a+b)×2
正方形的周长=边长×4
C
=
4a
长方形的面积=长×宽
S
=
a
b
正方形的面积=边长×边长
S
=
a×a
三角形的面积=底×高÷2
S
=
ah÷2
平行四边形的面积=底×高
S
=
ah
梯形的面积=(上底+下底)×高÷2
S
=
(a+b)h÷2
直径=半径×2
d=2r
半径=直径÷2
r=d÷2
圆的周长=圆周率×直径=
圆周率×半径×2
C=πd=2πr
圆的面积=圆周率×半径×半径
S=πr2
=π(d/2)2=π(c/2π)2
圆环
R-外圆半径
r-内圆半径
D-外圆直径
d-内圆直径
S=π(R2-r2)
=π(D2-d2)/4
长方体的表面积=
(长×宽+长×高+宽×高)×2
S=2(ab+ac+bc)
长方体的体积
=长×宽×高
V=abc
正方体的表面积=棱长×棱长×6
S=6a2
正方体的体积=棱长×棱长×棱长
V=a3
圆柱的侧面积=底面圆的周长×高
S底=πr2
S侧=Ch
圆柱的表面积=上下底面面积+侧面积
S表=Ch+2S底
圆柱的体积=底面积×高
V=S底h
=πr2h
圆锥的体积=底面积×高÷3
V=πr2h/3
长方体(正方体、圆柱体)的体积=底面积×高
v=sh
空心圆柱(钢管)
R-外圆半径
r-内圆半径
h-高
V=πh(R2-r2)

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