Becauseallstatesmustbebadatsomething.FengGeisgoingtotakepartinthegovernmenttest,buthecan'tbebadatit.Moreover,evensignatorycountriesmaybebadatabidingbytheconvention,especiallywhenitmeansenforcingthereturnofchildrentoaparentallegedtohavebeenabusive....
2018-07-15 26501
问题详情:已知:如图,AC平分∠BAD,CE⊥AB于E,CF⊥AD于F,且BC=DC.则∠ADC+∠B=__________°.【回答】180知识点:三角形全等的判定题型:填空题...
2021-07-15 5584
问题详情:在▱ABCD中,若∠BAD与∠CDA的平分线交于点E,则△AED的形状是 ()A.锐角三角形 B.直角三角形C.钝角三角形 D.不能确定【回答】B知识...
2019-09-27 19559
问题详情:如图,△ABC中,AB=AC,∠BAD=,且AE=AD.则∠EDC= ( )A. B. C. D.【回答】A知识点:相似三角形题型:选择题...
2021-10-05 24716
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=∠BACC.BD=AC,∠BAD=∠ABC D.AD=BC,BD=AC【回答】C【解析】试题分析:本题已知条件是两个三角形有...
2019-04-08 11457
haveagood/badreputationHisbadreputationiswellknown.Hewasbarredfrommembershipbecauseofhisbadreputation.Butabadreputationishardtoshake.ShehasabadreputationfortellingliesGoodreputationisalwayscan'tbreakthatmoney,badreputationisalwaysmakenottotakeoffthe...
2017-02-10 27052
1、Heisabadboy.2、Haveyoubeenabadboy?3、Hecan'tbeabadboy.4、Thebadboyhadabeating.5、"DracoMalfoyisabadboy!"squeakedDobbyangrily."abadboywho-who-".6、Womenlovetheraw,hunky,masculinityassociatedwiththeproverbialbadboy.7、"Mostyoungchildren,"Dr.T...
2024-01-07 20461
问题详情:在等边△ABC中,点D在BC边上,点E在AC的延长线上,DE=DA(如图1)(1)求*:∠BAD=∠EDC;(2)点E关于直线BC的对称点为M,连接DM,AM.①依题意将图2补全;②小姚通过观察,实验提出猜想:在点D运动的过程中,始终有DA=AM,小姚把这个猜想与同学们进行交流,通过讨论,形成了*该猜想的几种想法:想法1:要*DA=...
2019-07-25 8173
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,(SSA)三角形不全等,故A错误;B、在△ABC与△BAD中,,△ABC≌△BA...
2020-10-20 29026
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;(4分)(2)求*:AB+AD=2AE.(5分)【回答】【考点】全等三角形的*质 全等三角形的判定 轴对称与轴对称图形 等腰三角形【试题解析】(1)等腰三角形,*如下:∵AC∥y轴∴∠CAO=∠GOA∵AO平分∠BAC∴∠CAO=∠OAG∴∠GO...
2021-05-07 30212
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...
2020-10-12 8465
问题详情:如图,AD是正五边形ABCDE的一条对角线,则∠BAD= °.【回答】72.【解析】试题分析:根据正多边形的*质可得:∠DEA=∠EAB=108°,根据DE=AE可得∠EAD=(180°-108°)=36°,则∠DAB=∠EAB-∠EAD=108°-36°=72°.考点:正多边形的*质知识点:正多边形和圆题型:填空题...
2019-03-03 21702
1、Hisbadbehaviourrewardsattention.2、Onemustdeploresuchbadbehaviour.3、Suchbadbehaviourdeservesabeating.4、Hehasreceivedseveralsharpreproofsforbadbehaviour.5、Hisbadbehaviourresultedinhisexpulsionfromschool.6、Hisbadbehaviourwasjustanisolatedinciden...
2024-02-10 18752
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°.【分析】根据等腰三角形的三线合一的*质和等边三角形三个内角相等的*质填空.【解答】解:∵△ABC是等边三角形,∴∠BAC=60°,AB=AC.又点D是边BC的中点,∴∠BAD=∠BAC=30°.故*是:30°.【点评】考查了等边三角...
2021-04-08 23569
Shehasbadluck.Couragecanchangebadluck.Thereisnosuchthingasluckorbadluck.Wemighthavegoodluckorbadluck.ThisishowIturnbadluckintogoodluck.Whatbadluck!He'snotathome.Sogood,badluckfromthecancer;badluck!I'vemissedtheschoolbus.Superstition:Itisbadlucktoha...
2018-04-14 16814
问题详情:如图,∠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:三角形全等的判定题型:选择题...
2021-11-21 22870
问题详情:如图,若AD是△ABC的角平分线,则∠BAD______∠CAD=______或∠BAC=2______=2______.【回答】=,∠BAC,∠BAD,∠DAC知识点:与三角形有关的角题型:填空题...
2021-08-21 14772
问题详情:How To Break 5 Bad Financial HabitsEveryonehasabadfinancialhabit.Weliveinacountrythatspendsbillionsonadvertisingtomakeuswanttomakepurchases; 36 .Remember:eventhoughthehabitsarehardtobreakandrequiregreateffort,the...
2021-12-16 28548
问题详情:在矩形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()A.2和3 B.3和2 C.4和1 D.1和4【回答】B【考点】矩形的*质.【分析】先根据角平分线及矩形的*质得出∠BAE=∠AEB,再由等角对等边得出BE=AB,从而求出EC的长.【解答】解:...
2021-11-09 30633
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BF于H,如图,利用圆周角定理得到∠AFB=90°,再*四边形CDFH...
2019-02-13 24303
问题详情:如图,AD∥BE,AE平分∠BAD,CD与AE相交于F,∠CFE=∠E.试说明:AB∥CD.【回答】 过程略知识点:平行线的*质题型:解答题...
2020-06-14 26159
1、Thatwillbebadforyourhealth.2、Thiscouldbebadforusindustry.3、Violatingmilitaryruleswillcertainlybebadforhispromotion.4、Ifyoufocusonthebad,itwillbebadforyou.5、Ifinflationreturns,thatwillbebadforvaluations;ifrecessionwinsout,thatwillbebadforprofit...
2024-01-09 14778
TodayIdonatedsomemoneytoYijianwhoisinbadconditionandneedothers'help.Itsapplicationrange,i.e.greatelevationdifferenceandbadconditionoffoundation,arepointedout.Therapidlyescalatingcostofrebuildingthisshipcanalsobeseenasanadmissionoftheship'sbadcondit...
2018-01-13 9791
问题详情:如图所示,在扇形BAD中,点C在上,且∠BDC=30°,AB=2,∠BAD=105°,过点C作CE⊥AD,则图中*影部分的面积为()A.π﹣2 B.π﹣1 C.2π﹣2 D.2π+1【回答】A【考点】MO:扇形面积的计算.【分析】*影部分的面积=S扇形ACD﹣S△ACE,根据面积公式计算即可.【解答】解:∵∠BDC=30°,∴∠BAC=6...
2019-09-23 6095
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=2AE.【详解】(1)*:∵AC是角平分线,CE⊥AB于E,CF⊥AD于F,∴CE...
2019-04-15 25169