已知正方体的棱长为，试分别求出这个正方体的表面积和体积．-八年级数学

更多内容推荐

• —What do you think of this performance?—______，I don’t like it very much.A．HonestB．Being honestC．Be
• I have been fortunate to find a career that I love and ____ ,I can walk to work within 10 minutes.
• I lost my way in complete darkness and, ____matters worse, it began to rain.A．madeB．having madeC．mak
• 如果一个空间几何体的主视图和左视图都是边长为2的正三角形，俯视图是圆且中间有一点．那么这个几何体的表面积是（）A．3πB．2πC．3πD．3-数学
• 如果长方体从一点出发的三条棱长分别为2，3，4，则该长方体的表面积为（），体积为（）．-七年级数学
• 棱长为a的正方体摆放成如图的形状，问：（1）如图摆放成的几何体，共有几个正方体？表面积是多少？（2）如果将正方体按如图的方式摆放4层，共有几个正方体？表面积是多少？（3）若摆放成-七年级数学
• 从棱长为2的正方体毛坯的一角，挖去一个棱长为1的小正方体，得到一个如图所示的零件，则这个零件的表面积是（）A．20B．22C．24D．26-数学
• — ______ will get the first prize?— I'm sure, Li Hua. A．Who do you thinkB．You think whoC．Do you
• be sent to work in the shop?A．Who do you suggestB．Whom do you suggestC．Do you suggest who shouldD．Do
• He doesn’t have interest in cooking．__________, he’s getting tired of it．A．On the contraryB．On the o
• He fell off his bike and hurt his back._____, he will have to stay in hospital for a long time.A．Aft
• 要制造一个长方体箱子，底面为正方形，体积为0.25m3，且长方体的高是底面边长的2倍（1）求长方体的底面边长；（2）求长方体的表面积．-八年级数学
• 如图是由16个棱长为2厘米的小正方体搭成的，求它的表面积-七年级数学
• 将一个长方形绕它的一边所在的直线旋转一周，得到的几何体是圆柱，现在有一个长为4cm、宽为3cm的长方形，分别绕它的长、宽所在的直线旋转一周，得到不同的圆柱体，它们的体-七年级数学
• 半径为10cm的半圆折成一个圆锥图，则这个圆锥的底面积是（）平方厘米．-七年级数学
• The professor has written another book ____ of great importance to computer science. A．which I think
• —_____is the best football player in your city?—Jerry.A．Do you think who B．Do you think whomC．Who do
• 把14个棱长为1的正方体在地面上堆叠成如图所示的立体图形，然后将露出的表面部分涂成红色，那么红色部分的面积为[]A．21B．24C．33D．37-七年级数学
• 如图，桌面上的模型由20个棱长为a的小正方体组成，现将该模型露在外面的部分涂上涂料，则涂上涂料部分的总面积为（）A．20a2B．30a2C．40a2D．50a2-数学
• 若将棱长为2的正方体切成8个棱长为1的小正方体，则所有小正方体表面积的和是原正方体表面积的______倍；若将棱长为3的正方体切成27个棱长为1的小正方体，则所有小正方体表面-数学
• 有一个粮仓，它们上面是圆锥体，下面是圆柱体，已知圆柱的底面周长是18.84米，高为4米，圆锥的高是1米，则这个粮仓的体积是多少立方米？-七年级数学
• This is really an exciting match. _______ the game?A．Who do you think will winB．Whom do you think wi
• More and more people have got to know the importance of the English study. ______, about six people
• 现将一个长为4厘米，宽为3厘米的长方形，分别绕它的长、宽所在的直线旋转一周，得到不同的圆柱体，它们的体积分别是多大？-七年级数学
• 一位美术老师在课堂上进行立体模型素描教学时，把14个棱长为1分米的正方体摆在课桌上成如图形式，然后他把露出的表面都涂上不同的颜色，则被他涂上颜色部分的面积为（）。-七年级数学
• 如图，计算它的体积。-八年级数学
• 棱长是1cm的小立方体组成如图所示的几何体，那么这个几何体的表面积为[]A．36cm2B．33cm2C．30cm2D．27cm2-七年级数学
• The expert offered us another piece of advice , ___ of great help to our program. A．I think it isB．I
• _______, the examination tomorrow has been cancelled (取消).A．Believe it or notB．It dependsC．It is up
• 如图是一个上下底密封纸盒的三视图，请你根据图中数据，计算这个密封纸盒的表面积为()cm2．（结果可保留根号）-九年级数学
• Remember to do this in time of H1N1 --- constantly the windows to let fresh air enter and move aroun
• 如图是由边长1cm的小立方体所搭成的，试计算它们的表面积，与同学交流自己计算所用的巧妙方法．-九年级数学
• There was a traffic jam. ___________，he was late.A As a result B As a result of C As the result D As
• Jack is good, hard-working and intelligent. _____, I can’t speak too highly of him.A．In a wordB．As a
• ，his suggestion is not helpful，though it sounds very interesting．A．Generally speakingB．On the contra
• 边长分别是3、5、8的三个正方体被粘合在一起，在这些用各种方式粘合在一起的立体中，表面积最小的那个立体的表面积是[]A.570B.520C.530D.538-八年级数学
• 棱长是1cm的小立方体组成如图所示的几何体，那么这个几何体的表面积为[]A．36cm2B．33cm2C．30cm2D．27cm2-七年级数学
• 棱长是1cm的小立方体组成如图所示的几何体，那么这个几何体的表面积是（）cm2．-七年级数学
• 一个画家有14个边长为1m的正方体，他在地面上把它们摆成如下图的形状，然后他把露出的表面都涂上颜色，那么被涂上颜色的总面积为[]A．19m2B．21m2C．33m2D．34m2-七年级数学
• Mom is coming. What present ________ for your birthday?A．do you expect has she gotB．do you expect s
• He is only too ready to help others, seldom, _____, refusing them when they turn to him. [ ]A. if ne
• 扬子江药业集团生产的某种药品包装盒的侧面展开图如下图所示.如果长方体盒子的长比宽多4cm，求这种药品包装盒的体积.-七年级数学
• I lost my way in complete darkness and, _____matters worse, it began to rain.A．madeB．having madeC．m
• It is thought that one billion people I the world,________is half the word’s workers, earn their li
• I didn’t like the story,________, it’s too long, also it was written by a writer I don’t knowA．for
• I asked my boss for a month’s holiday and, _________, she agreed.A．what’s moreB．that is to sayC．in o
• I’ve been fortunate to find a career that I love and, _____, I get well paid for it.A．what’s moreB．
• The student did not catch the last bus, _______, it began to rain cats and dogs.A．in the fleshB．at
• We might not contact the rescue team. _____, the rescue team itself might get lost.A．Still worseB．ba
• What _____ do next?[ ]A. you think should we B. you think we should C. do you think we should D. do