首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
P, Q and R are three points in a plane, and R does not lie on line PQ. Which of the following is true about the set of all point
P, Q and R are three points in a plane, and R does not lie on line PQ. Which of the following is true about the set of all point
admin
2019-10-11
25
问题
P, Q and R are three points in a plane, and R does not lie on line PQ. Which of the following is true about the set of all points in the plane that are the same distance from all three points?
选项
A、It contains no point.
B、It contains one point.
C、It contains two points.
D、It is a line.
E、It is a circle.
答案
B
解析
不共线的三个点可以组成三角形,到这三个点距离都相等的点,只有一个,是三角形外接圆的圆心(外心)。外心是三角形三条边的中垂线的交点。外心到三个点的距离均为外接圆半径,符合题意。由于外心只有一个,故答案为B。
转载请注明原文地址:https://kaotiyun.com/show/RSkO777K
本试题收录于:
GRE QUANTITATIVE题库GRE分类
0
GRE QUANTITATIVE
GRE
相关试题推荐
Expertssuggestusingadifferentpasswordforeverywebsiteyouvisit,andchangingthepasswordeveryfewmonths.Ittakestro
Hehasbeencalledthe"missinglink."Half-man,half-beast.Heissupposedtoliveinthehighestmountainintheworld-
Manystudentsfindtheexperienceofattendinguniversitylecturestobeaconfusingandfrustratingexperience.Thelecturersp
Intheexperimentonrats,afragrantflavorwasaddedtotherat’sdrinkingwaterto______.Asfarastheireatinghabitsare
Thepatient’srecoverywasveryencouragingashecould_____getoutofbedwithouthelp.
Thewaypeopleholdtothebeliefthatafunfilled,painfreelifeequalshappinessactuallyreducestheirchancesofeveratta
Whichofthefollowingisequaltothecubeofanon-integer?
Inthefigureabove,iftheshadedregionisrectangular,whatisthelengthofXY?(1)Theperimeteroftheshadedregionis24
Inthefigureabove,threesquaresandatrianglehaveareasofA,B,C,andXasshown.IfA=144,B=81,andC=225,thenX=
解方程(1-x)/(x-1)=1/x。
随机试题
急性呼吸窘迫综合征
患者,男性,60岁。咳嗽2个月,干咳为主,有午后低热,今天上午突然咯血400ml来院急诊。急诊处理首选()
已婚的蒙某系某厂业务员。1999年在联系业务时与服务员刘某互有好感。蒙某谎称自己未婚,于2000年7月利用空白介绍信填写虚假内容与刘某(不知蒙某已结婚)登记结婚。后来蒙某之妻潘某有所觉察,多次询问均被蒙某否认。蒙某恐夜长梦多,即生害妻之心。2002年6月某
设备安装精度是指在安装工程中,为保证整套装置正确联动所需的()。
组织承诺是指()。
论述四种配送模式的优劣分析
2016年《国务院政府工作报告》中提出,大力推行“互联网+政务服务”,实现部门间数据共享,让居民和企业少跑腿、好办事、不添堵。“互联网+政务服务”的积极影响是:
A、 B、 C、 A
Thequestionsinthisgrouparebasedonthecontentofapassage.Afterreadingthepassage,choosethebestanswertoeachque
A、Afterclass.B、At11:00.C、At10:00.D、At10:30.DM:Myprofessoraskedmetogotohisofficeafterclass,soitisimpossibl
最新回复
(
0
)