VERY VERY 一个圆柱体的底面半径是高的1/3,侧面沿高展开所得图形的周长是55.68厘米.这个圆柱的体积是多少?

秦威1232022-10-04 11:39:542条回答

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心怀紫玉共回答了25个问题 | 采纳率84%: 昨天有人提过这问题了.设半径为x.高为3x.得公式:3x*2+2(3.14*x平方)= 55.68算出x然后再3.14*x平方*3x就是圆柱体体积了; 1年前

yuxinmanniang150 共回答了20个问题 | 采纳率: (2Pi*R+3R)*2=55.68 Pi为圆周率
===>R=...
体积=(PiR^2)*(3R)=3Pi*R^3; 1年前

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