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Rt△ABC中,∠ACB=90°,=,CD⊥AB于点D,点E是直线AC上一动点,连接DE,过点D作FD⊥ED,交直线BC于点F. (1)探究发现: 如图1,若m=n,点E在线段AC上,则...
查看本题答案
包含此试题的试卷
教案备课库《》真题及答案
点击查看
你可能感兴趣的试题
如图在Rt△ABC中∠ACB=90°AB=10CD是AB边上的中线则CD的长是【】
20
10
5
.如图在Rt△ABC中∠ACB=90°CD⊥AB若∠A.=60°AD=2cm则AB=________
如图在Rt△ACB中∠ACB=90°∠
=25°,点D.是AB上一点.将Rt△ABC沿CD折叠,使
点落在AC边上的点B.′处,则∠ADB′等于( )
A.25° B.30°
35°
40°
如图已知Rt△ABC中∠ACB=90°D.是AB的中点CD=2cm则AB=.
在Rt△ABC中∠ACB=90°CD⊥AB垂足为D如果CD=4BD=3那么∠A的正弦值是.
在Rt△ABC中∠ACB=90°D.是AB的中点CD=4cm则AB=cm.
如图在Rt△ABC中∠ACB=90°CD⊥AB于点D.BD=3cmAD=9cm则BC=_______
如图已知Rt△ABC中∠ACB=90°CD是高∠
=30°,BD=2cm,求AB的长( )
A.4
6
8
10
如图已知Rt△ABC中∠ACB=90°D.是AB的中点AB=5则CD=.
在Rt△ABC中∠ACB=90°CD是斜边AB上的中线CD=4AC=6则sinB的值是.
如图在Rt△ABC中∠ACB=90°CD⊥AB于D.若AD=1BD=4则CD=.
在Rt△ABC中∠ACB=90°CD是斜边AB上的中线CD=4AC=6则sinB的值是______.
如图在Rt△ABC中∠ACB=90°CD是AB边上的高AC=6AB=9则AD=
2
3
4
5
如图Rt△ABC中∠ACB=90°AB=6D.是AB的中点则CD=.
如图在Rt△ABC中∠ACB=90°CD⊥AB于点D.点E.是AB的中点∠BCD=20°则∠ACE=
20°
30°
45°
60°
已知如图在Rt△ABC中∠ACB=90°CD⊥AB于点D.若AC=4BC=3则CD=________
在Rt△ABC中ÐACB=90°D.是AB的中点CD=4cm则AB=cm
如图在Rt△ABC中∠ACB=90°AD平分∠BAC与BC相交于点D若BD=4CD=2则AB的长是.
如图Rt△ABC中∠ACB=90°CD⊥AB于D.∠ACD=40°则∠B.=
如图所示在Rt△ACB中∠ACB=90°∠A=25°D.是AB上一点.将Rt△ABC沿CD折叠使B.
25°
30°
35°
40°
热门试题
更多
Themanstoleacomputeryesterday.Thepolicemustcatchand惩 罚him.
﹣DoyouknowifJimmytotheparty? ﹣Iamnotsure.ButifheIwillgivehimabigsurprise. A.comeswillcome B.willcomecomes C.comescomes
﹣MichaelJacksonwascalledthekingofpopwasn'the? ﹣Ofcourse.Hebypeopleallovertheworld. A.waslookedup B.lookedupto C.lookedup D.waslookedupto
﹣﹣﹣Onlyasmallnumberofstudentsabletopasstheexam. ﹣﹣﹣Yes.Thenumbernomorethan20. A.isis B.areis C.isare D.Areare
﹣deliciousbeef! ﹣Well.Youcaneatmoreifyoulikeit. A.What B.Whata C.How D.Howa
Myteacherwarnedusinthestreets. A.nottoplay B.don'tplay C.tonotplay D.tonotplay
﹣CanyoucometoourThanksgivingparty? ﹣WellIdon'tknow. A.thatIcanfinishmyworkbythen B.ifcanIfinishtheworkbythen C.whetherIcanfinishtheworkbythen
Robertisgoodatplayingpianoalthoughheisonly11﹣year﹣oldboy. A./the B.thean C.thethe
你能告诉我们今天晚上乐队什么时候开始表演吗? .
ThisisexactwhatIneed.
Tomyoucangoouttoplayfootballafteryourhomework. A.willfinish B.isfinished C.wasfinished D.finishes
Idon'tthinkfastfoodisgoodforourhealthsoIgotoMacDonald. A.seldom B.always C.usually D.often
SheisgirlfromAsia. A.a18﹣year﹣old B.an18﹣years﹣old C.an18﹣year﹣old D.a18﹣years﹣old
Thiskindofpotiskeepingteahot. A.usedin B.usedfor C.usedas D.usedby
Hesentthelanternsoutforhelpwhenintrouble. A.ask B.toask C.asking D.asked
AHiLiLei.56 BMyfavoritefestivalistheLanternFestival. A57 BWecelebrateitonlunarJanuary15theveryyear. A58 BWeeatdumplingsforgoodluck. A59 BWewatchlanternshowsandguessriddles谜语onlanterns. AIsee.60 BYou'rewelcome.
Wecan'tbe缺席的fromclass.
Ifyoufindithardto翻译thisarticleyoumayturntoYoudaoDictionaryforhelp.
Christmasisagreattimeforspreadloveandjoy.
﹣LiNaisreallyagreattennisplayerintheworld. ﹣Yes.WeweresoherwhenshewontheAustralianOpentennistournament. A.proudof B.afraidof C.surprisedat D.worriedabout
﹣Howisyourgrandma? ﹣She'sfine.SheusedtoTVathomeaftersupper.Butnowsheisusedto outforawalk. A.watchgo B.watchinggoing C.watchgoing
Themanonthegroundandthathehadthemoneyonthedesk. A.liedlaylaid B.laidliedlay C.liedliedlaid D.layliedlaid
ZhengYuanjieiswidelyknown_children'sworks作品. A.in B.about C.for D.as
你知道成功的秘诀是什么吗?
I'msorryyou.Couldyoupleaseloudlyhere? A.troublenottalk B.totroublenottotalk C.totroublenottalk
Ourteachergaveusonstudying. A.manyadvices B.someadvices C.anadvice D.someadvice
Sheusedlate.Butnowsheisusedearly. A.togetuptogetup B.togetuptogettingup C.togettinguptogetup D.togettinguptogettingup
ThiskindofTVsetShenzhen. A.aremadein B.aremadeof C.ismadein D.ismadeof
Hisparentsmadeadecisiontosendhimtoaboardingschool.
It'sbeen3yearswelastsawourprimaryschoolclassmates. A.since B.before C.after D.until
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