首页
试卷库
试题库
当前位置:
X题卡
>
所有题目
>
题目详情
△ABC的中线BD、CE相交于O,F,G分别是BO、CO的中点,求证:EF∥DG,且EF=DG.
查看本题答案
包含此试题的试卷
教案备课库《初二(下)数学暑假作业(19)》真题及答案
点击查看
你可能感兴趣的试题
如图△ABC的中线BDCE交于点OFG分别是BOCO的中点. 求证四边形EFGD为平行四边形.
如图在△ABC中BDCE是△ABC的中线BD与CE相交于点O点FG分别是BOCO的中点连接AO.若A
14cm
18cm
24cm
28cm
如图△ABC的中线BDCE交于点O.F.G.分别是BOCO的中点求证四边形EFGD为平行四边形
已知△ABC的中线BDCE交于点OFG分别是OBOC的中点.求证四边形DEFG是平行四边形.
如图在△ABC中BD.CE是△ABC的中线BD与CE相交于点0点F.G.分别是BOCO的中点连接AO
14 cm
18 cm
24 cm
28 cm[来源:Zxxk.Com]
如图在△ABC中BDCE分别是边ACAB上的中线BDCE相交于点O求证BO=2OD.
已知△ABC中中线BECF相交于O.M.是BO的中点N.是CO的中点求证四边形MNEF是平行四边形.
如图在△ABC中BDCE是△ABC的中线BD与CE相交于点O点FG分别是BOCO的中点连接AO.若A
14cm
18cm
24cm
28cm
如图在△ABC中BDCE分别是边ACAB上的中线BD与CE相交于点O则ODOB=.
如图在△ABC中BDCE分别是边ACAB上的中线BD与CE相交于点O.则_.
△ABC的中线BDCE相交于OFG分别是BOCO的中点求证EF∥DG且EF=DG.
已知如图△ABC的中线BDCE交于点O.F.G.分别是OBOC的中点.求证EF=DG且EF∥DG.
如图▱ABCD的对角线ACBD相交于点O点E.F分别是线段AOBO的中点.若AC+BD=24厘米△O
如图在△ABC中BD.CE是△ABC的中线BD与CE相交于点0点F.G.分别是BOCO的中点连接AO
14 cm
18 cm
24 cm
28 cm
在△ABC中∠
=80°,BD 、CE分别平分∠ABC.∠ACB,BD.CE相交于点O.,则∠BOC等于( ) A.140°
100°
50°
130°
已知△ABC的中线BDCE交于点O.F.G.分别是OBOC的中点.求证四边形DEFG是平行四边形.
如图在△ABC中BDCE是△ABC的中线BD与CE相交于点O点FG分别是BOCO的中点连接AO.若
14cm
18cm
24cm
28cm
如图等腰三角形ABC中BDCE分别是两腰上的中线. 1求证BD=CE 2设BD与CE相交于点O
如图在△ABC中AB=ACBDCE分别是边ABAC上的高BD与CE交于点O.求征BO=CO.
如图在△ABC中BDCE是△ABC的中线BD与CE相交于点O点FG分别是BOCO的中点连接AO.若A
热门试题
更多
Hismotheroftentellshimtoomuchtimeplayinggames.A.nottospend B.don’tspend C.spends D.spending
—It'simportantforustoknowallthesubjects.—Yeahgroupworkismyfavorite.A.howtostudy B.whentostudyC.whichtostudy D.whattostudy
Mymotheralwaystellsmebooksinthesun.It'sharmfultooureyes.A.don’tread B.notread C.nottoread D.notreading
—Couldyoupleaseteachmetogiveout'Redenvelope'红包onWeChat?—Sure.Letmeshowyou.A. how B. why C. when D. where
—I'mgoingtobuyacar.AnyadviceCharlie?—Wellitdependson.Ifmoneyisn’taproblemyoumaybuyaBMW.A.whenwillyoubuyone B.whatcolordoyoulikeC.howmuchyoucanafford D.whereyouaredriving
Ifallofuspulltogethertheremustbesomethingwecando.A.improvetheenvironmentB.toimprovetheenvironmentC.improvingtheenvironmentD.improvedtheenvironment
Excuseme.Couldyoupleasetellme?A.howgettotheCinema B.howIgottotheCinemaC.howIcangettotheCinema D.howshouldIgettotheCinema
Whenyouleavepleaseturnoffthelightsenergy.A.save B.tosave C.saving D. saved
Hecandowhathecanthechildreninhisneighborhood.A.help B.tohelp C.helps D.helped
---Couldyoutellmeatthemeeting?—SorryIdidn’tgotothemeeting.A.whathesaid B.whatdidhesayC.whathesays D.whatdoeshesay
Ourteachertellsusonthestreetbecauseit'stoodangerous.A.notplaysoccer B.nottoplaysoccerC.tonotplaysoccer D.toplaysoccer
— Mumcanyoutellme?Idreamedofhimlastnight.—Nextweek.A.whenmydadcomesback B.wheremydadgoesC.whenmydadwillcomeback D.wheremydadwillgo
I'llspendasmuchtimeasIcaninanoldpeople'shome.A.help B.tohelp C.helping D.helped
—Couldyoutellme?—Sometimes.IfIhavetime.A. howoftenyougotoseeafilmB. howmuchtimeyouspendonyourhobbiesC. howlongyoudoyourhomework D. howsoonwillyougotoseeyourgrandparents
Iwanttostopmyjobforafewmonthstoayeararoundtheworld.A.traveling B. totravel C. traveled D.travels
FrankisfriendlythanhisbrotherA.alittlemore B.afewmore C.much D.alittle
—WowWendyit'scooltomakeashortvideowithyourmobilephone.—JustwithasoftwarecalledMeipai.Letmeshowyou.A.whichtouse B.howtouseit C.whattouse D.wheretouseit
—Canyoutellme?Iwanttopayavisittohim.—Hejustlivesoppositeourschool.A.wheredoesJimlive B.wheredidJimliveC.whereJimlives D.whereJimlived
Youhelpedtomakeitpossibleformeanewcar.A.having B. have C. tohave D.has
Alanoftengoestotheoldpeople'shomeuptheoldandlookafterthem.A.tocheer B.cheer C.cheers D.cheered
---LookatUncleLiang’snewcar.---Iwonder.A.whenheboughtit. B.whendidhebuyitC.whenhebuysit D.whenhewillbuyit
一Canyourememberthispark?Wehere.—Sure.ButnowIinthatswimmingpool.A. areusedtotakeawalkamusedtoswumB. areusedtotakingawalkamusedtoswimmingC. usedtotakeawalkusedtoswimD. usedtotakeawalkamusedtoswimming
—Ms.Pettycanyoutellme?—Africa.A. whatthebabygiraffelikeseatingB. whythebabygiraffelooksunhappyC. whenthebabygiraffewasbomD. wherethebabygiraffecamefrom
Thisoneistoolarge.Canyoushowmeaone?A.larger B.large C.small D.smaller
Couldyoutellmeamomentago?A.whatweretheytalkingaboutB.whataretheytalkingaboutC.whattheyweretalkingaboutD.whattheyaretalkingabout
—'Doyouknowhowmuchthenewmobilephonelastweek?'——'About1500yuan.'A.Alicepaidfor B.didAlicepayforC.Alicewillpayfor D.willAlicepayfor
LiMingusedontherightinChinabuthesoongotusedontheleftinEngland.A.todrive;todrive B.driving;drivingC.todriving;todrive D.todrive;todriving
—Excusemedoyouknow?—Sure.Thereisabookstoredownthestreet.A.wherecanIgetsomepostcards B.whereIcangetsomepostcardsC.whenIcangetsomepostcards D.whencanIgetsomepostcards
—CanyoutellmetoLondon?—Sure.Nextmonth.A. whenyouwilltravelB. whenwillyoutravelC. whenyoutravelledD. whendidyoutravel
—Couldyoupleasetellmenext?A.howtodo B.howtodoit C.whattodoit D.whytodo
热门题库
更多
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
高一下学期数学
教案备课库
高一上学期数学
高一上学期化学
教案备课库
教案备课库