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,△ABC内接于⊙O,AD平分∠BAC交⊙O于点D,过点D作DE∥BC交AC的延长线于点E. (1)试判断DE与⊙O的位置关系,并证明你的结论; (2)若∠E=60°,⊙O的半径为5,求AB...
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⊙O.是△ABC的外接圆AE平分∠BAC交⊙O.于点E.交BC于点D.过点E.做直线l∥BC.1
△ABC内接于⊙O.中AD平分∠BAC交⊙O于D.1如图1连接BDCD求证:BD=CD2如图2若BC
如图△ABC内接于⊙O.过点A.的直线交⊙O.于点P.交BC的延长线于点D.AB2=AP·AD.1求
如图所示⊙O.的内接△ABC中∠BAC=45°∠ABC=15°AD∥OC并交BC的延长线于D.点OC
如图1△ABC内接于⊙O.∠BAC的平分线交⊙O.于点D.交BC于点E.BE>EC且BD=2.过点D
已知如图△ABC中AB=ACAD平分∠BACBE平分∠ABC交AD于点E.经过B.E.两点的⊙O.交
△ABC内接于⊙O.中AD平分∠BAC交⊙O于D.1如图1连接BDCD求证:BD=CD2如图2若BC
如图在△ABC中AB=ACD.是BC中点AE平分∠BAD交BC于点E.点O.是AB上一点⊙O.过A.
如图已知AB是⊙O的直径直线BC与⊙O相切于点B∠ABC的平分线BD交⊙O于点DAD的延长线交BC于
如图△ABC内接圆O.AD平分∠BAC交圆于点D.过点B.作圆O.的切线交直线AD于点E.Ⅰ求证∠E
如图△ABC内接于⊙OAB=ACAD是⊙O的切线BD∥ACBD交⊙O于点E.连接AE则下列结论①∠D
如图△ABC内接于⊙O.AB是⊙O.的直径∠BAC=60°弦AD平分∠BAC若AD=6那么AC=.
如图AB是⊙O.的直径点C.是⊙O.上一点∠BAC的平分线AD交⊙O.于点D.过点D.垂直于AC的直
如图△ABC内接于⊙O.AB=AC过点A.作AD⊥AB交⊙O.于点D.交BC于点E.点F.在DA的延
如图在△ABC中先作∠BAC的角平分线AD交BC于点D.再以AC边上的一点O.为圆心过A.D.两点作
如图已知AB为⊙O直径AC是⊙O的弦∠BAC的平分线AD交⊙O于D过点D作DE⊥AC交AC的延长线于
如图13△ABC内接于⊙O.且AB为⊙O.的直径∠ACB的平分线交⊙O.于点D.过点D.作⊙O.的切
如图△ABC内接于⊙O.AB是⊙O.的直径∠BAC=60°弦AD平分∠BAC若AD=6那么AC=.
已知如图△ABC内接于⊙O.AB为直径∠CBA的平分线交AC于点F.交⊙O.于点D.DE⊥AB于点E
如图△ABC内接于⊙OAD是∠BAC的平分线交BC于点M交⊙O于点D.则图中相似三角形共有
2对
4对
6对
8对
热门试题
更多
MoreandmoretreesinBeijingeveryyear.A.plant B.planted C.areplanted D.wereplanted
Hisdaughterdidn'tgotoschoolyesterday.改为同义句 Hisdaughterschoolyesterday.
他说话声音很低太难听清楚他说什么了. Hespeaksinalowvoice.It'shearhimclearly.
﹣﹣﹣Ithinkstudentsshouldhavemobilephonestocalltheirparents.﹣﹣﹣Theyoftenusethemtoplaygamesinstead.A.Goodidea. B.Noproblem. C.Idisagree.
Becauseoftheterribleweathertheythepicnic. A.organized B.managed C.canceled D.attended
Thegirlusedtohateants.改为同义句 Thegirllikeants.
Ericcan'taffordaholidaythissummerbecausehehasmuchworktodo.A.have B.had C.having D.tohave
﹣Couldyougivemesomeonhowtokeephealthy?﹣Yes.Eatlessjunkfoodanddomoresports.A.manners B.suggestions C.introductions D.customs
AlthoughIhavemanyfriendshereI想念我父母verymuch.
Pleasetellme. A.howtodo B.whattodo C.wheretodo D.dowhat
Thefilmstarrefusedtotalkabouthis私人的life.
MyEnglishteachergivesmesomeadviceonhowtoimprovemylistening. A.course B.preparation C.ability D.choice
Judy在学校表现好andalltheteacherslikeher.
﹣Canwehaveadayofftomorrow? ﹣Everydayisworkdaytheworkisdone. A.if B.after C.when D.till
IfoundveryeasytolearnEnglishwellifyouputyourheartintoit. A.that B.what C.it D.this
Mostyoungpeoplewantto找工作inbigcities.
Everyoneintheteamplayedpartinplayingthisgamewell.A.a B.an C.the D.不填
BythetimeIrushedintothecinemathefilmforhalfanhour. A.hadbegun B.began C.hadbeenon
﹣DoyoumindifIsitnexttoyou?﹣Ofcoursenot.Theseatis.A.full B.comfortable C.empty D.valuable
Weoftendolotsofexperimentsinourclasses. A.chemical B.history C.Chinese D.physics
﹣Who'sboyyoutalkedtojustnow?﹣He'sBob.AndheisAustralianboy.A.aan B.aa C.thean D.thethe
Nowmanywildanimalsareindanger.Ifwedon'ttoprotectthemitwillbehardforustoseetheminthenearfuture.A.takeplace B.takepart C.takeaction D.takecare
IlovereadingbooksbecauseIcanhavemuchfromthem. A.food B.knowledge C.money D.grammar
如果你逐字读你需要三天才能读完那本书. Ifyoureadyouneed3daystofinishreadingthebook.
﹣I'msorryImyexercisebookathomethismorning. ﹣Itdoesn'tmatter.Don'tforgetitherethisafternoon. A.lefttotake B.forgotbringing C.lefttobring
请根据以下内容写一篇题为MyBadDay的短文. 内容提示1.昨天下午出发去机场接朋友车子中途抛锚到达时朋友已在机场等了两个小时 2.请朋友去饭店吃晚餐却发现钱包忘在了家里最后朋友付了钱 3.回到自己家时发现热水器坏了只好洗了个冷水澡. 作文要求1.正确使用本单元的重点句型和时态不能照抄原文不得在作文中出现学校的真实名称和学生的真实姓名 2.语句连贯词数80左右. 参考词汇中途halftheway买单paythebill热水器waterheater
Thevegetablesweresopopularthattheywereinanhour. A.eatenout B.helpedout C.soldout
房间越干净你就会越感到舒服. theroomisyou'llfeel.
Hegavemelifttotherailwaystationlastnight.A.a B.an C.the D./
﹣WhywereyoulateforschoolthismorningJim?﹣BecauseIandmissedtheearlybus.A.created B.stayed C.overslept D.caught
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
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