如图所示,在下列条件中,不能判断△ABD≌△BAC的条件是( )A.∠D=∠C,∠BAD=∠ABC ...
问题详情:如图所示,在下列条件中,不能判断△ABD≌△BAC的条件是( )A.∠D=∠C,∠BAD=∠ABC B.∠BAD=∠ABC,∠ABD=∠BAC =AC,∠BAD=∠ABC =BC,BD=AC【回答】C知识点:三角形全等的判定题型:选择题...
问题详情:如图所示,在下列条件中,不能判断△ABD≌△BAC的条件是( )A.∠D=∠C,∠BAD=∠ABC B.∠BAD=∠ABC,∠ABD=∠BAC =AC,∠BAD=∠ABC =BC,BD=AC【回答】C知识点:三角形全等的判定题型:选择题...
问题详情:如图,已知AC平分∠BAD,CE⊥AB于E,CF⊥AD于F,且BC=CD.(1)求*:△BCE≌△DCF;(2)求*:AB+AD=2AE.【回答】详见解析【分析】(1)由角平分线定义可*△BCE≌△DCF(HL);(2)先*Rt△FAC≌Rt△EAC,得AF=AE,由(1)可得AB+AD=(AE+BE)+(AF﹣DF)=AE+BE+AE﹣DF=...
Hispalefacesuggestsbadhealth.Hisbadhealthworriedhisparentsgreatly.Formuchofthetimehesufferedfrombadhealth.Therecouldbesomepsychologicalexplanationforhisbadhealth.Hisbadhealthexemptedhimfrommilitaryser...
问题详情:如图, ABCD中,AD=5,AB=3,AE平分∠BAD交BC边于点E,则线段BE,EC的长度分别为 ( )y A...
问题详情:在▱ABCD中,∠BAD的平分线交直线BC于点E,交直线DC于点F(1)在图1中*CE=CF;(2)若∠ABC=90°,G是EF的中点(如图2),直接写出∠BDG的度数;(3)若∠ABC=120°,FG∥CE,FG=CE,分别连接DB、DG(如图3),求∠BDG的度数.【回答】(1)见解析;(2)45...
SteveBallmerhasbeenwithBillGatesfromthebeginningwhenthebespectacledcomputergeekconvincedhimtodropoutofStanfordBusinessSchool.ThegrandsonofaRussianCzaristsoldierandthesonofaSwissimmigrantfather,Ballmer...
问题详情:如图,矩形ABCD中,两条对角线相交于点O,AE平分∠BAD交于BC边上的中点E,连接OE.下列结论:①∠ACB=30°;②OE⊥BC;③OE=BC;④S△ACE=S▱ABCD.其中正确的个数是()A.1 B.2 C.3 D.4【回答】B【考...
问题详情:如图,已知▱ABCD中,AE平分∠BAD,CF平分∠BCD,分别交于E.F.求*:AF=EC. 【回答】*:∵四边形ABCD为平行四边形, ∴AD∥BC∠BAD=∠BCD,∴AF∥EC,∴∠DAE=∠AEB,∵AE平分∠BAD,CF平分∠BCD,∴∠DAE=∠BAD,∠FCB=∠BCD,∴∠DAE=∠...
comebackagainlikeabadpennylikeabadpenny...;aforgedtwentydollarbill.AteverypartyIwenttothatyearhe'dkeepturninguplikeabadpenny....
问题详情: 水的电离平衡曲线如右图所示,下列说法中,正确的是A.图中A、B、D三点处KW间的关系:B>A>DB.100℃,向pH=2的稀硫*中逐滴加入等体积pH=10的稀氨水,溶液中c(NH4+)/c(NH3·H2O)减小,充分反应后,溶液到达B点C.温度不变,在水...
1、Hisbadbehaviourrewardsattention.2、Onemustdeploresuchbadbehaviour.3、Suchbadbehaviourdeservesabeating.4、Hehasreceivedseveralsharpreproofsforbadbehaviour.5、Hisbadbehaviourresultedinhisexpulsionfro...
问题详情:如图1,∠CAB=∠DBA,再添加一个条件,不一定能判定△ABC≌△BAD的是( )A.AC=BD B.∠1=∠2 C.AD=BC D.∠C=∠D 【回答】C知识点:三角...
问题详情:已知:如图,AC是∠BAD和∠BCD的角平分线,则△ABC≌△ADC用______判定( ).A.AAA B.ASA或AAS C.SSS D.SAS【回答】B知识点:三角形全等的判定题型:选择题...
Excuseherbadmanners.Hisbadbehaviourrewardsattention.Smokingisbadforhealth.'Hewasn'tabadchap.Thebadnews,notsurprisingly,continuestobeverybad.makesomegood[bad]speculationsNotbadforanupstart.comebackag...
问题详情:如图,已知∠ABC=∠BAD,添加下列条件还不能判定△ABC≌△BAD的是()A.AC=BD B.∠CAB=∠DBAC.∠C=∠D D.BC=AD【回答】A解:由题意,得∠ABC=∠BAD,AB=BA,A、∠ABC=∠BAD,AB=BA,AC=BD,(SS...
问题详情:如图,已知,添加下列条件还不能判定△ABC≌△BAD的是( )A.AC=BD B.∠CAB=∠DBA C.∠C=∠D D.BC=AD 【回答】A知识点:各地中考题型:选择题...
"That'swhatJoeysaid,"Pattytoldthem."hesaiditwasjustawordandnotevenabadword."Hecankeepsecretsforothersandneversaysabadwordaboutanyone.Agoodwordthreewinterwarm,badwordshurtJunecold.Threat,itseemsto...
问题详情:如图,在等边三角形ABC中,点D是边BC的中点,则∠BAD=__________.【回答】30°知识点:与三角形有关的角题型:填空题...
问题详情:如图所示,在下列条件中,不能判断△ABD≌△BAC的条件是()A.∠D=∠C,∠BAD=∠ABCB.∠BAD=∠ABC,∠ABD=∠BACC.BD=AC,∠BAD=∠ABC D.AD=BC,BD=AC【回答】C解:A、符合AAS,能判断△ABD≌△BAC;B、符合ASA,能判断△ABD≌△BAC;C、...
问题详情:如图,已知∠1=∠2,请你添加一个条件使△ABC≌△BAD,你的添加条件是 (填一个即可). 【回答】BC=AD或或 知识点:三角形全等的判定题型:填空题...
问题详情:如图,△BAD是由△BEC在平面内绕点B旋转60°而得,且AB⊥BC,BE=CE,连接DE.(1)求*:△BDE≌△BCE;(2)试判断四边形ABED的形状,并说明理由.【回答】(1)*:∵△BAD是由△BEC在平面内绕点B旋转60°而得,∴DB=CB,∠ABD=∠EBC,∠ABE=60°,∵...
1、Thatwillbebadforyourhealth.2、Thiscouldbebadforusindustry.3、Violatingmilitaryruleswillcertainlybebadforhispromotion.4、Ifyoufocusonthebad,itwillbebadforyou.5、Ifinflationreturns,thatwillbebadforva...
问题详情: 平行四边形ABCD中,已知AB=4,AD=3,∠BAD=60°,点E,F分别满足则的值为 .【回答】因为,;,那么.知识点:平面向量题型:填空题...
问题详情:如图所示,△OAC和△BAD都是等腰直角三角形,∠ACO=∠ADB=90°,反比例函数y=在第一象限的图象经过点B,与OA交于点P,且OA2﹣AB2=18,则点P的横坐标为()A.9 B.6 C.3 D.3【回答】C【考点】G6:反比例函数图象上点的...
问题详情:如图,AB是⊙O的直径,ED切⊙O于点C,AD交⊙O于点F,∠AC平分∠BAD,连接BF.(1)求*:AD⊥ED;(2)若CD=4,AF=2,求⊙O的半径.【回答】(1)*见解析;(2)⊙O的半径为.【解析】(1)连接OC,如图,先*OC∥AD,然后利用切线的*质得OC⊥DE,从而得到AD⊥ED;(2)OC交...