首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
如图，在矩形ABCD中，AE平分∠BAD交BC于点E，BE=5cm，EC=3cm，则这个矩形的周长为（ ）
查看本题答案
包含此试题的试卷
教案备课库《八（1）年级数学作业2018-5-2》真题及答案
点击查看
你可能感兴趣的试题
如图在平行四边形ABCD中∠B.=80°AE平分∠BAD交BC于点E.CF∥AE交AE于点F.则∠1
40°
50°
60°
80°
如图在平行四边形ABCD中∠B.=80°AE平分∠BAD交BC于点E.CF∥AE交AD于点F.则∠1
40°
50°
60°
80°
如图已知▱ABCD中AE平分∠BADCF平分∠BCD分别交BCAD于E.F.求证AF=EC.
如图已知□ABCD中AE平分∠BADCF平分∠BCD分别交BCAD于E.F.求证DF=BE.
探究如图①在矩形ABCD中过点A.作∠EAF＝∠BADAE交线段BC于点E.AF交线段CD的延长线于
如图在平行四边形ABCD中∠B.=80°AE平分∠BAD交BC于点E.CF∥AE交AD于点F.则∠1
40°
50°
60°
80°
如图矩形ABCD中ACBD相交于O.AE平分∠BAD交BC于E.若∠CAE=15°求∠BOE的度数.
如图在矩形ABCD中AD=AB∠BAD的平分线交BC于点E.DH⊥AE于点H.连接BH并延长交CD于
2个
3个
4个
5个
如图1矩形ABCD中AB=6BC=8点E.F.分别是BCCD边上的点且AE⊥EFBE=21求证AE=
如图在□ABCD中已知AD＝5cmAB＝3cmAE平分∠BAD交BC边于点E.则EC等于
1 cm
2 cm
3 cm
4 cm
如图在矩形ABCD中DE平分∠ADC交BC于点E.EF⊥AD交AD于点F.若EF=3AE=5则AD等
5
6
7
8
如图在矩形ABCD中AD=AB∠BAD的平分线交BC于点E.DH⊥AE于点H.连接BH并延长交CD于
2个
3个
4个
5个
如图在平行四边形ABCD中∠BAD的平分线交BC于点E.∠ABC的平分线交AD于点F.若BF＝12A
13
14
15
16
如图在▱ABCD中已知AD=5cmAB=3cmAE平分∠BAD交BC边于点E.则EC等于
1cm
2cm
3cm
4cm
已知如图四边形ABCD中AD⊥DCBC⊥ABAE平分∠BADCF平分∠DCBAE交CD于E.CF交A
如图4在矩形ABCD中ACBD相交于O.AE平分∠BAD交BC于E.∠CAE=15°求∠BOE的度数
已知如图在矩形ABCD中E.F.分别是边BCAB上的点且EF＝EDEF⊥ED.求证AE平分∠BAD.
如图在矩形ABCD中对角线ACBD相交于点O.AE平分∠BAD交BC于点E.若∠CAE=15°求∠B
如图在矩形ABCD中DE平分∠ADC交BC于点E.EF⊥AD交AD于点F.若EF=3AE=5则AD=
如图矩形ABCD中AB=8点E.是AD上的一点有AE=4BE的垂直平分线交BC的延长线于点F.连结E
7
8
9
10
热门试题
更多
1.5分Istoyouropinion.同意
1.5分Aftermanyattemptssheemanagedtogetpromotion.终于
Servingteatotheguestisa典型的wayforthehosttoshowhospitalityinChina.
1.5分Heareducingmilitaryspending.提倡
假设你叫李华现是武汉大学的一名新生.请你根据以下提示给你中学的英语老师李老师写一封感谢信表达对他的感谢.词数100左右.提示1.对英语李老师表达感谢.2.回顾在校时考试的压力堆积如山的作业和父母的高期望让你很沮丧多亏老师的鼓励和耐心指导让你成绩提高终于实现梦想.3.希望老师的学生都能进入理想大学.
Thereisonethingthateveryonewantsmorethananythingelse．36．Theythinkthatwhentheyhaveenoughmoneytobuysuchthingsashousesfarmsandcarstheywillhavethethingthateveryonewants．Otherpeoplebelievethatiftheyknowenoughtheywillfindthisthing．37．Stillothersthinkthatiftheyhavepowertheywillfindthisthing．TheykeeptellingthemselvesWhenIamabossIwillnolongerhavetosearchforthisthing．WhatisitthateveryonewantsmorethananythingelseWhatisitthatallofuskeepworkingandsearchingforeachday38．Happinessisastrangething．39．Whatwillmakeonemanhappymaynotmakeanothermanhappy．Somemensaythathappinesscomesfromhelpingothersothermensaythathappinesscomesfrommakinglifemorepleasantforeveryone．Whatdoyoumeanwhenyousay'Thatmakesmehappy．'40．Perhapsfromthemyouwilllearnsomethingthatwillbringyoupeaceofmindcomfortmoneyormaybringyouwhatyousearchfor﹣﹣﹣﹣happiness．A．Itishappiness．B．Itdoesn'tmeanthesametoallmen．C．Theystudyalltheirlivesinsearchofit．D．Happinessmeansthesametoeveryone．E．Somepeopletrytogetitbymakingmoney．F．Whenonemanfeelshappyanothermanwillfeelsad．G．Readwhatdifferentpeoplehavesaidabouthappiness．~~40.
节约能源是每个人的责任.一旦资源耗尽世界将会陷入混乱.Energyconservationiseveryone'sresponsibility.Iftheresourcestheworldwouldbeplungedintochaos.
研究工作确实耗费很多时间和精力.Researchworkreallylotsoftimeandenergy.
ForthehealthofpeoplesmokinginthepublicplaceshasbeenbinChinasince2011.
1.5分Iftolookafterluggageforsomeoneelseinformthepoliceatonce.A.asked B.toask C.asking D.havingasked
2017年·汉中二模压力过大会导致机体产生焦虑感影响人体内环境的稳态．如图为该生理过程中通过突触相连接的两个神经元．回答下列问题1外界刺激引起焦虑紧张时血液中多种激素的含量会发生改变．其中刺激使甲状腺激素含量增加是通过填神经体液或神经﹣体液调节实现的在该调节中体现了反馈调节和两个特点．2长期处于焦虑紧张状态下机体免疫能力减弱．原因是在中成熟的T细胞活性下降导致产生量减少影响体液免疫另外T细胞的增殖分化过程减缓会影响．3若在图中a点箭头处施加适宜刺激则该处膜外电位变化为该变化主要是细胞膜对钠离子的通透性增加导致的．刺激后只能在bcd三个位点中的检测到膜电位变化原因是．
2017年·汉中二模下列有关实验和生物学研究方法的叙述中正确的是
Thenewteacheriskindandprofessionalwhichhasleftagoodionhisstudents.
1.5分theprogrammetheyhavetostaythereforanothertwoweeks.A.Havingnotcompleted B.NotcompletedC.Nothavingcompleted D.Notcompleting
Thelittlefishingvillageisperhapsoneofthemostremotesettleofthecountry.
1.5分TheDragonKingwasoverjoyedandatheturtletoaveryhighposition.任命
假如你是李华你的美国朋友Paul已经学汉语六年为了更好地学习汉语及了解中国文化他来信希望你向他推荐一部中文名著或优秀中文电影.请你给他写一封回信.具体要求如下1.写信目的.2.推荐理由语言及文化方面.3.希望对方也能向你推荐一部英文名著或优秀英文电影.注意1.字数100左右.2.信的开头和结尾已给出不计入总字数.参考词汇推荐recommend文学名著literarymasterpieceDearTomHowiseverythinggoingIamwritingtosharewithyouoneofmyfavoritemoviesTheRoadHome推荐的理由.It'sawonderfulmoviewhichisnotonlybeneficialtoyourlanguagestudybutalsohelpfultoyourbetterunderstandingaboutcommonChinesepeople'slife整体说明写信的目的.Thefilmiswellworthseeing.ForonethingthelanguageinthisChinesemoviemaycontributetoyourstudyofChineseinlisteningandspeaking.ForanothertheculturalelementsinthescenewillequipyouwithChineseculturalbackgroundandaboveallbroadenyourmind.Hopeyoucanenjoyit具体论述推荐的理由.I'llappreciateitifyoucanalsorecommendanEnglishliterarymasterpieceorawonderfulEnglishmovietome.希望对方推荐一部英文名著或优秀英文电影Iamlookingforwardtoyourreply.YourssincerelyLiHua.
2017年·汉中二模下列关于细胞结构组成和功能的叙述正确的是
Fromthedisappointlookonhisfaceweallknewit'snotgoodnews.
Thesmokecausedbyburninggarbagecan使中毒humanbeingsandanimals.
1.5分Thegovernmentatothepeopleforthesupport.呼吁
1.5分Itwasinthesmallhousewasbuiltwithstonesbyhisfatherhespenthischildhood.A.whichthat B.wherethat C.thatwhere D.thatwhich
Thereisonethingthateveryonewantsmorethananythingelse．36．Theythinkthatwhentheyhaveenoughmoneytobuysuchthingsashousesfarmsandcarstheywillhavethethingthateveryonewants．Otherpeoplebelievethatiftheyknowenoughtheywillfindthisthing．37．Stillothersthinkthatiftheyhavepowertheywillfindthisthing．TheykeeptellingthemselvesWhenIamabossIwillnolongerhavetosearchforthisthing．WhatisitthateveryonewantsmorethananythingelseWhatisitthatallofuskeepworkingandsearchingforeachday38．Happinessisastrangething．39．Whatwillmakeonemanhappymaynotmakeanothermanhappy．Somemensaythathappinesscomesfromhelpingothersothermensaythathappinesscomesfrommakinglifemorepleasantforeveryone．Whatdoyoumeanwhenyousay'Thatmakesmehappy．'40．Perhapsfromthemyouwilllearnsomethingthatwillbringyoupeaceofmindcomfortmoneyormaybringyouwhatyousearchfor﹣﹣﹣﹣happiness．A．Itishappiness．B．Itdoesn'tmeanthesametoallmen．C．Theystudyalltheirlivesinsearchofit．D．Happinessmeansthesametoeveryone．E．Somepeopletrytogetitbymakingmoney．F．Whenonemanfeelshappyanothermanwillfeelsad．G．Readwhatdifferentpeoplehavesaidabouthappiness．~~38.
ThepoliceaskedLiHuatodwhathehadseeninthecaraccident.
由于他对公益活动充满热情他很想在青年志愿者协会中申请一个职位.WithanextremeenthusiasmaboutthepublicserviceheiseagertoapositionintheYouthVolunteersAssociation.
1.5分Havingbeenattackedbyterrorists.A.thetallbuildingcollapsedB.doctorscametotheirescuedC.anemergencymeasurewastakenD.warningsweregiventotourists
2017年·汉中二模如图是某同学设计的茉莉油提取实验．图1是流程图2是提取的实验装置请回答1该同学提取茉莉油的方法是．采摘原料应在茉莉油含量较高的填花开的盛期或花开的晚期采收．2图中B过程表示通常应向油水混合物中加入促进B过程的进行．要完成图中C过程需要向提取液中加入因为通过B过程获得的提取物可能含有．3蒸馏完毕应先然后停止最后拆卸蒸馏装置拆卸顺序与安装顺序相反．4橘皮精油主要储藏在橘皮部分提取一般不采用图中所示的方法原因是．为了防止橘皮压榨时滑脱提高出油率需要将柑橘皮干燥去水然后用一种化学物质浸泡使橘皮变得粗糙细胞变得疏松该化学物质是．
2017年·汉中二模发展经济不应以破坏环境为代价已经成为人类的共识．为此汉中市政府精心筹划以汉江为依托修建了天汉湿地文化公园．下列相关叙述正确的是
1.5分Shoulditrainthecrops.A.wouldbesaved B.wouldhavebeensavedC.willbesaved D.hadbeensaved
exposetothesunlightfortoolongherskingotsunburnt.
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
湘公网安备 43130202000226号