cho tam giác ABC cân tại A.Trên tia đối BC lấy điểm D,Trên tia đói tia CB lấy điểm E sao cho BD=CE.Kẻ BH⊥AD;CK⊥AE.CHỨNG MINH RẰNG:

a)BH=CK

b)ΔABH=ΔACK

c)Gọi I là giao điểm của BH và CK.Chứng minh:ΔIBC cân tại I

d)Kẻ AM là đường cao ΔABC.Chứng Minh ba điểm A,M,I thẳng hàng

cho tam giác ABC cân tại A.Gọi D là trung điểm của cạnh BC..Kẻ DE⊥AB,DF⊥AC.Chứng minh rằng:

a)ΔDEB=ΔDFC

b)ΔAED=ΔAFD

c)AD là tia phân giác của góc BAC

cho tam giác ABC cân tại A.Gọi D là trung điểm của cạnh BC..Kẻ DE⊥AB,DF⊥AC.Chứng minh rằng:

a)ΔDEB=ΔDFC

b)ΔAED=ΔÀD

c)AD là tia phân giác của góc BAC

1. _____________ they spent a lot off money on the film,it wasn’ta big success

A.Although B Nevertheless C.However D.When

2.Drivers have to _________ your seatbelt whenever they drive.

A. Fasten B .Put on C.Put D.tie

3.We found the plot of the film ______.

A. Acting B. Interested C.Boring D.Bored

4.Mr.Bean’s Holiday is a _____ film –I was laughing from beginning to end

A.Violent B. moving C. scary D.Hilarious

5.A _____ is a lilm that’s shows real life events or stories.

A.Documentary B.Thiriller C.Comedy D.Action

6.A____ is a film that tried to make audiences laugh.

A Sci-fi B.Comedy C.Horror D. Documentary

7 He forgot to give a_______ before he turned left and got a ticket

A.Hand B. light C.sign D.Signal

8.Alot of cutural and_____ activities are leld as part of the Flower Festival in Da Lat.

A.arts B.Artist C C.Artistic D.Art

9. We should wait for the traffic lights _______before we cross the stress

A. To tern yellow B.To turn green C.turn yellow D.Turn green

10.We were ________ with the latest film of that director

A.Satisfied B.Satisfactory C.Satisfying D.satisfy

11.Cyclists and motorists have to wear a _____ when they ride a motobike.

A.Cap B.Mask C. Hard hat D.helmet

12.The end of the film was so _____ that many people cried

A.exciting B.Moving C Shocking D.Boring

13.Last night, I didn’t go to bed early _______ being very tired.

A In spite of B.Because of C Despite of D.Although

14.I found the book so_________ that I couldn’t put it ddown.

A.gripping B.Tiring C.Shocking D.Boring

15.People of______ Minorities in Phu Yen telebrate Hoi Mua festival every march

A.Ethnic B.Native C.Village D.Local

16.The Academy Awards, commonly ______ as The Oscars, are the most famous film awards In the world.

A.Known B.know C.Knew D.Be know

17.The_____ asmosphere is felt around all the villages

A.Tradition B.Air C.Festive D.Festival

18.Not many people went to see the film;_____,it received good reviews from crittic.

A.However B.Despite C.Although D.But

19.Diwali,the Hindu festival of light,Is the ______holiday of the year in India

A.Importance B.Most importance C.More important D.Most important

20. All of us have to obey _____ strictly

A.traffic rules B.Traffic jam C.Traffic D.Regular

1. _____________ they spent a lot off money on the film,it wasn’ta big success

A.Although B Nevertheless C.However D.When

2.Drivers have to _________ your seatbelt whenever they drive.

A. Fasten B .Put on C.Put D.tie

3.We found the plot of the film ______.

A. Acting B. Interested C.Boring D.Bored

4.Mr.Bean’s Holiday is a _____ film –I was laughing from beginning to end

A.Violent B. moving C. scary D.Hilarious

5.A _____ is a lilm that’s shows real life events or stories.

A.Documentary B.Thiriller C.Comedy D.Action

6.A____ is a film that tried to make audiences laugh.

A Sci-fi B.Comedy C.Horror D. Documentary

7 He forgot to give a_______ before he turned left and got a ticket

A.Hand B. light C.sign D.Signal

8.Alot of cutural and_____ activities are leld as part of the Flower Festival in Da Lat.

A.arts B.Artist C C.Artistic D.Art

9. We should wait for the traffic lights _______before we cross the stress

A. To tern yellow B.To turn green C.turn yellow D.Turn green