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如图,在△ABC中,∠BAC=45°,AD⊥BC于D,将△ACD沿AC折叠为△ACF,将△ABD沿AB折叠为△ABG,延长FC和GB相交于点H. (1)求证:四边形AFHG为正方形; (2)若B...
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如图在△ABC中∠ABC=45°∠BAC=90°AD是BC上的高沿AD把△ABD折起使∠BDC=90
如图在△ABC中∠B=46°∠C=54°AD平分∠BAC交BC于DDE∥AB交AC于E则∠ADE的大
45°
54°
40°
50°
如图在△ABC中D.E在BC上且BD=DE=AD=AE=EC则∠BAC的度数是
30°
45°
120°
15°
如图已知AD是△ABC的BC边上的高下列能使△ABD≌△ACD的条件是
AB=AC
∠BAC=90°
BD=AC
∠B.=45°
已知如图△ABC中∠B.=65°∠C.=45°AD是BC边上的高AE是∠BAC的平分线.求∠DAE的
如图在△ABC中D.E.在BC上且BD=DE=AD=AE=EC则∠BAC的度数是_____.
30°
45°
120°
15°
已知如图△ABC中∠B.=65°∠C.=45°AD是BC边上的高AE是∠BAC的平分线.求∠DAE的
如图已知△ABC中AB=ACAD平分∠BAC请补充完整过程说明△ABD≌△ACD的理由.解∵AD平分
如图在△ABC中∠BAC=45°AD⊥BCCE⊥AB垂足分别为D.E.AD.CE交于点H.且EH=E
①②③;
①③④;
②③④;
①②③④.
情境观察如图1△ABC中AB=AC∠BAC=45°CD⊥ABAE⊥BC垂足分别为DECD与AE交于点
如图在△ABC中∠BAC=45°AB=4cm将△ABC绕点B.按逆时针方向旋转45°后得到△A.′B
如图△ABC中AD是BC上的高AE平分∠BAC∠B.=75°∠C.=45°求∠DAE与∠AEC的度数
如图在△ABC中∠ABC=45°∠BAC=90°AD是BC上的高沿AD把△ABD折起使∠BDC=90
如图在△ABC中AB=AC∠BAC=108°点D.在BC上且BD=AB连接AD则∠CAD等于
30°
36°
38°
45°
如图18△ABC中∠ABC=45°AD是∠BAC的平分线EF垂直平分AD交BC的延长线于F.则∠CA
如图要使△ABC≌△ABD下面给出的四组条件中错误的一组是
BC=BD,∠BAC=∠BAD
∠
=∠
,∠BAC=∠BAD C.∠BAC=∠BAD,∠ABC=∠ABDD.BC=BD,AC=AD
如图在△ABC中AB=AC∠BAC=108°点D.在BC上且BD=AB连接AD则∠CAD等于
30°
36°
38°
45°
△ABC中已知∠BAC=45°AD⊥BC于D.BD=2DC=3求AD的长.
如图在△ABC中∠ABC=45°∠BAC=90°AD高沿AD把是BC上的△ABD折起使∠BDC=90
如图在△ABC中AD⊥BC垂足为D.∠B.=60°∠C.=45°.1求∠BAC的度数2若AC=2求A
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AMESAustralia﹣FlagstaffisgladtoofferyouaplaceinCertificate证书inSpokenandWrittenEnglish.ThiscourseispartoftheAdultMigrantEnglishProgramfoundedbytheAustraliaGovernmentDepartmentofEducation&Training. Coursedatesare03.10.2017﹣14.12.2017 ●Timetable ●Thisis12hoursperweek. ●Ifyoucan'tattendonthefirstdayyoumusttellus.Pleasecontacttheofficeon99264717. ●Ifyouneithercontactusnorattendonthefirstdayyoumayloseyourplaceintheclass. ●Ifyourchildrenneedcarepleasecontactus. ●Ifyouneedtogiveupthecourseyoumusttellbothyourcounselorandyourteacher. 25.HowlongwilltheSpokenandWrittenEnglishcourselast A.Aboutthreedays. B.Over2months. C.About11months. D.Lessthan2months. 26.What'stheChinesemeaningofcounselorinthepassage A.顾问 B.班主任 C.辅导员 D.考官 27.WhichofthefollowingisTRUEaccordingtothecourse A.Room5isonlyforLevel4students. B.Peopleofallagescantakethiscourse. C.YoucanhavelessonsinRoom2onMonday. D.You'resuretoloseyourplaceunlessyouattendonthefirstday.
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我哥哥曾经考虑回无锡以便将来找到好工作. Mybrotherhecangetagoodjobinthefuture.
Ahobbyisanactivitywecandoinourfreetimesothatwecankeepourselvesbusywithsomethingthatmakesushappy.Differentpeoplehavedifferentkindsofhobbiesaccordingtotheirpersonallikesanddislikes.Hobbiesareactivitieswechoosetodobutnotactivitieswehavetodo.Thereisalotofdifferencebetweenwantingtodosomethingandhavingtodoit.Weonlywanttodothosethingsweliketodoandthingsthatgiveuspleasureandpeaceofmind. Hobbiesplayaveryimportantroleinourlives.Forexampletheyareawayofconnectinguswithourinnerself.Thetimedevotedtotakingupahobbyisourowntime.Thisisthetimewhenwecanconnectandcommunicatewithourselves.Duringthispersonaltimewecandowhateverwelike.Doingthingsaccordingtoourownwishesgivesusasenseofinnersatisfactionandalsohelpsdevelopself﹣confidence. Hobbiesalsohelpdiscovertalents.Thereisapossibilitythatweareinterestedinacertainactivitybuthaveneverhadachancetotryit.Ifwedevelopourinterestasourhobbiesit'squiteclearthatwe'lldoitwithgreatinterest.Soevenifwehavenevertriedacertainthingbeforewecanstilllearntodoit.Thehobbyists'hiddentalentscanbediscoveredandthiscanmakethemfeelmoreconfident. It'shumannaturetotrytoknowmoreaboutthethingswelike.Themomentwepursue追求someactivitiesasourfavoritehobbieswewanttogainmoreknowledgeaboutthesamehobby.Whetherit'sgardeningcookingpaintingorcollectingstampswealwaystrytogetadeeperunderstandingofwhatwe'redoingsothatwecandoitmorecorrectly.What'smorewealsohappentomeetpeoplewithsimilartastesandsometimesowningrichknowledgeabouttheirhobbies.Besidesgainingknowledgehobbiesalsoprovideuswithachancetomeetpeoplewhosharesimilarlikesanddislikeswithus. Whateverourhobbiesaretheycanbedevelopedatanyageasachildorasanadult.Howeverifwebeginatayoungagewecangetmoretimetoexperiencethejoys.Thehobbymaygrowwithusandsomedaymayalsotakeustogreatheights. Whydowetakeuphobbies? Paragraphoutline Supportingdetails Meanings Hobbiesareactivitieswedoinoursparetimeandcanmakeushappy. Hobbiesareactivitieswedoaccordingtothe54wemake. Advantages Helpingconnect withtheinnerself Thetime55onthehobbyisourpersonaltimewhenwecanbefreetodoanythingwelike. We'llfeel56andbecomemoreconfident. Helpingdiscover talents Wecanlearnalotbytryingsomeactivitieswithgreatinterest. We'llbeabletofindourhiddentalents. Helpinggain knowledge Whenpursuingahobbyweshouldtryourbestto57itwellandthenwegainalotofknowledge. Wecanalsomeetsomelearnedpeopleandlearnalot fromthem. Conclusion 58allhobbiescanbedevelopedatanyageyetit'sbettertodeveloponewhenweareyoung. 54. 55. 56. 57. 58.
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