a, xét tam giác AMB và tam giác AMC có:

                AB=AC(gt)

                \(\widehat{BAM}\)   =\(\widehat{CAM}\)(gt)

                AM chung

suy ra tam giác AMB= tam giác AMC(c.g.c)

b,xét tam giác AHM và tam giác AKM có:

                AM cạnh chung

                \(\widehat{HAM}\)=\(\widehat{KAM}\)(gt)

suy ra tam giác AHM=tam giác AKM(CH-GN)

Suy ra AH=AK

c,gọi I là giao điểm của AM và HK

xét tam giác AIH và tam giác AIK có:

            AH=AK(theo câu b)

            \(\widehat{IAH}\)=\(\widehat{IAK}\)(gt)

            AI chung

suy ra tam giác AIH=tam giác AIK (c.g.c)

Suy ra \(\widehat{AIH}\)=\(\widehat{AIK}\)mà 2 góc này ở vị trí kề bù nên \(\widehat{AIH}\)=\(\widehat{AIK}\)= 90 độ

\(\Rightarrow\)HK vuông góc vs AM

vì 38 lít xăng có 1 lượng xăng ít hơn 1 cái bình 50 lít 

suy ra 38 lít xăng có thể chứa hết được 1 cái bình 50 lít

là sao vậy bn ??

bạn phải ghi rõ phép tính ra chứ ghi mỗi cái đề bài vậy?

Giúp Monz với mn ơi )):

I, use the prompts to write  sentences, putting the verb in present simple passive

1, cheese/ make/ from milk.

=> Cheese is made from milk.

2, the Temple/ visit/ thousands of people/ every year.

=> The temple is visited by thousands of people every year

3, Toyota cars/ produce/ Toyota Motor Corporation.

=> Toyota cars are produced by Toyota motor corporation

4, German/ also/ speack/ at EU meetings

=> German is also spoken at EU meetings

5, Most newspapers/ print/ on recycled paper.

=> Most newspapers are printed on recycled paper

6, the Imperial Academy/ consider/ the first university in vietnam

=> The imperial academy is considered the first university in vietnam

7, Three millilitres of water/ add/ to the mixture

=> Three milliliters of water is added to the mixture

8, The letters/ deliver/ the postman/ at 8 o'clock

=> The letters is delivered by the postman  at 8 o'clock

II. complete the sentences using the past simple passive from of the verbs in brackets

1, The Temple ofliterature .......was constructed...........(construct) in 1070 under Ly Thanh Tong's dynasty.

2, the statues ......were built.....(build) by the Ha Noi people's committee in 2003.

3, the Doctors' stone tablets........were recognised......( recognise) by UNESCO in 2010.

4, the constrDuc temb .......was completed..........(complete) in 1876.

5, the students of the Imperial Academy ( thiếu đề bài )

6, Originally, the Po Nagar tower .............was made................( make) of wood in order to worship Goddess Po Nagar

7, Between, 1442 and 1779, eighty-one exams......were holded.......(hold) by the Le drynasty

8, Chu Van An ........was beared........(bear ) in Van Thon village, Thanh Dam district