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△ABC中,∠ACB=90°,∠A=50°,将其折叠,使点A落在边CB上A'处,折痕为CD,则∠A'DB的度数为( )A.40° B.30° C.20° D.10°
查看本题答案
包含此试题的试卷
教案备课库《2017——2018学年度上学期八(2)年级暑假学习验收数学试卷》真题及答案
点击查看
你可能感兴趣的试题
如图Rt△ABC中∠ACB=90°∠
=50°,将其折叠,使点A.落在边CB上A.′处,折痕为CD,则∠A.′DB=( ) A.40°
30°
20°
10°
在Rt△ABC中∠ABC=90°AC=5BC=3CD是∠ACB的平分线将△ABC沿直线CD翻折点A落
如图Rt△ABC中∠ACB=90°∠
=50°,将其折叠,使点A.落在边CB上A.′处,折痕为CD,则
( ) A.40°
30°
20°
10°
如图Rt△ABC中∠ACB=90°∠
=50°,将其折叠,使点A.落在边CB上A.′处,折痕为CD,则∠A.′DB=( )
A.40°
30°
20°
10°
如图3在△ABC中∠ACB=105°∠
=30°,CD平分∠ECA,∠2=90°,则∠1的度数为 …………………………………………………………………………………( ) A. 50°
55°
60°
70°
如图Rt△ABC中∠ACB=90°∠A.=50°将其折叠使点A.落在边CB上A.′处折痕为CD则__
如图在△ABC中∠ACB=90°CD∥AB∠ACD=40°则∠B.的度数为
40°
50°
60°
70°
如图Rt△ABC中∠ACB=90°∠A=50°将其折叠使点A.落在边CB上A.′处折痕为CD则∠A′
如图Rt△ABC中∠ACB=90°∠A=50°将其折叠使点A.落在边CB上A.′处折痕为CD则∠A′
如图3在△ABC中∠ACB=105°∠
=30°,CD平分∠ECA,∠2=90°,则∠1的度数为 …………………………………………………………………………………( ) A. 50°
55°
60°
70°
如图Rt△ABC中∠ACB=90°∠A.=50°将其折叠使点A.落在边CB上A.′处折痕为CD则∠A
如图在Rt△ABC中∠ACB=90°M.为AB边的中点将Rt△ABC绕点M.旋转使点
与点C.重合得到△CED,连结MD.若∠
=25°,则∠BMD等于( ). A. 50° B.80°
90°
100°
如图在Rt△ABC中∠ACB=90°BC=6CD是斜边AB上的中线将△BCD沿直线CD翻折至△ECD
如图Rt△ABC中∠ACB=90°∠
=55°,将其折叠,使点A.落在边CB上A.′处,折痕为CD,则∠A.′DB=( )
A.40°
30°
20°
10°
如图Rt△ABC中∠ACB=90°将Rt△ABC向下翻折使点A.与点C.重合折痕为DE.求证DE∥B
如图Rt△ABC中∠ACB=90°∠A=50°将其折叠使点A.落在边CB上A.′处折痕为CD则∠A′
如图Rt△ABC中∠ACB=90°∠
=50°,将其折叠,使点A.落在边CB上A.′处,折痕为CD,则∠A.′DB=( )
A.40°
30°
20°
10°
如图Rt△ABC中∠ACB=90°DE过点C.且DE∥AB若∠ACD=50°则∠B.的度数是
50°
40°
30°
25°
如图Rt△ABC中∠ACB=90°∠
=50°,将其折叠,使点A.落在边CB上A.′处,折痕为CD,则∠A.′DB=( )
A.40°
30°
20°
10°
如图直角ΔABC中∠ACB=90°斜边AB上的中线CD长为3cm则AB长是____cm若∠ACD=5
热门试题
更多
﹣CanI yourbike﹣Withpleasure.Butyoumustn't ittoothers.A.lendborrow B.borrowlendC.lendlend D.borrowborrow
Iofferedmyseattoa盲的womanonthebusyesterday.
Weneedatapeforourlisteningclass.
CallMikea365-4639.
Scientistsaretryingtheirbestto waystotreattheterriblediseasecalledH7N9.A.comeupwith B.lookforwardtoC.talkabout D.giveup
﹣ExcusemeisthisiPadmini﹣Noitisn'tisathome.A.yourMine B.yourMy C.yoursMy D.yoursMine
Don'tmakeany噪音whenyouareinthelibrary.
YoucancallJack327—5781. A.is B.at C.in D./
Ifyouhaveanyquestionyoucanaskyourteacherhelp. A.for B.on C.in D.from
Ourschoolisbig.Wehavetwo.library
近来'光盘行动CleanPlateCampaign悄然流行提倡'节约型社会economizedsociety'已成共识.请你根据下列表格中的信息用英语为某英语报社写一篇短文谈谈作为一名中学生在日常生活中应该如何勤俭节约反对浪费并作简要评论.注意1短文须包括上述要点应适当增加细节以使行文连贯2词数80词左右短文的标题和开头已给出不计人总词数.Let'sstartwiththethingsaroundus!Recentlythe'CleanPlateCampaign'hasbeenverypopularwithmanypeople.Ourgovernmentisdoingitsbesttobuildaneconomizedsociety.AsamiddleschoolstudentIthink.
—Couldyoutellme I'mgoingtopickyouupattheairport.—At1545thisFriday.A.whereyoumetmeB.whoyouarecomingwithC.whenyoucamehereD.whattimeyouarearriving
Hernotebookinherbackpack. A.am B.is C.are D.be
下列运算正确的是
It'sagoodhabittobrushour牙齿twiceaday.
你的棒球在书桌里吗Isyourthedesk?
今天晚上你能给我打电话吗Canyoumethis?
﹣Look!Somepeoplearerunningtheredlights.﹣Weshouldwaitothersarebreakingtherule.A.if B.unless C.although D.because
—Isthisbook? —Yesit'sEnglishbook. A.a;a B.an;an C.an;a D.a;an
Mycousinhasthreewatch.
I'msotiredthatIcanhkeepmyeyesopen.
Thisradioisinthatcase.改为复数句子 in.
Hisfootballishischair.
Whichofthefollowingsignsmeans'Nophotos'A. B. C. D.
—Isthiscomputergame? —Yesiscomputergame. A.his;itme B.your;thishis C.your;itmy D.you;itmy
﹣Wouldyoulikesomejuiceorcoffee﹣ isOK.Ireallydon'tcare.A.Both B.Either C.All D.Neither
ThenewsemesterusuallybeginsinSeptemberthenmonthofayear.
计算-a2·a3的结果是
Asetofkisonyourdesk.
Itisn'tmypencil.Isityour.
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
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
教案备课库
高一上学期物理
教案备课库
教案备课库
教案备课库