首页
登录
职称英语
[img]ct_gre5image060[/img]The rectangular solid above is made up of eight cubes
[img]ct_gre5image060[/img]The rectangular solid above is made up of eight cubes
游客
2024-01-12
32
管理
问题
The rectangular solid above is made up of eight cubes of the same size, each of which has exactly one face painted blue. What is the greatest fraction of the total surface area of the solid that could be blue?
选项
A、1/6
B、3/14
C、1/4
D、2/7
E、1/3
答案
D
解析
上图所示的长方体由8块同样大小的立方体构成,每个立方体仅有一个面被涂成蓝色。问该长方体的表面是蓝色的部分占其总表面积的最大比例是多少?
解:本题的正确答案为(D)。蓝色部分占表面最大比例的情况是8个立方体的蓝色表面均露在外面,共有8个平方单位,而长方体的表面共有28个平方单位,因而蓝色部分占长方体表面积的最大比值为8/28=2/7。
转载请注明原文地址:https://tihaiku.com/zcyy/3356767.html
相关试题推荐
Intherectangularquadrantsystemshownabove,whichquadrant,ifany,contains
Intherectangularquadrantsystemshownabove,whichquadrant,ifany,contains
Arectangularblockofgoodsisputinarectangularboxof4inchesby6inches
Intherectangularcoordinatesystemabove,forhowmanyofthepointsthatlie
[img]2022m10x/ct_ve01204002j_0051_221018[/img]InrectangularregionPQRSabove,
Inarectangularcoordinatesystem,linekhasx-intercept4andslope-2.Colum
[img]ct_gre5image038[/img]Arectangularlabelisattachedtoarightcircularc
[img]ct_gre5image090[/img]Intherectangularcoordinatesystemabove,ifP,not
Intherectangularcoordinatesystem,linekpassesthroughthepoints(0,0)an
[img]ct_gre5image060[/img]Therectangularsolidaboveismadeupofeightcubes
随机试题
ApplicationsoutsidetheEarth’satmosphereareclearlyagoodfitforrob
[originaltext]Yuppiesareyoungpeoplewhoearnalotofmoneyandlivein
[originaltext]Inafamilywheretherolesofmenandwomenarenotsharply
Accordingtothepassage,allofthefollowingwerebenefitsofprivatizingstat
Completethenotesbelow.WriteNOMORETHANTWOWORDSforeachanswer.ROBERTS
Languageandculturearenotfundamentallyinseparable.Atthemostbasicl
陈先生,54岁。右侧腰区受伤后出现腰痛和轻度血尿,第三天,腰部肿胀进行性加重,血
培训评估主要解决的问题是( )。A.评估的可行性分析 B.明确评估的目的
男性,70岁,三个月前出现活动后胸闷伴头晕,曾晕厥一次,近一周来上一层楼即感心前
B公司和C公司共同设立一项安排D,假定该安排构成一项业务。该安排的所有重大事项均
最新回复
(
0
)