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Cho Tam giác ABC gọi I là trung điểm AB. trên tia đối tia IC lấy điểm D sao cho IC=ID
A) Chứng minh AD=BC và AD//BC
B) gọi K là trung điểm AC. trên tia đối KB lấy điểm E sao cho KE=KB . CHỨNG minh 3 điểm D,A,E thẳng hàng
câu B cần hơn nhé
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Cho tam giác ABC vuông tại A có AB < AC. Vẽ AH vuông BC tại H. Vẽ HI vuông AB tại I. Trên tia HI lấy D sao cho I là trung điểm của DH.
a) Chứng minh tam giác ADI = tam giác AHI
b) Chứng minh AD vuông góc BD
c) Cho BH = 9 và HC = 16. Tính AH
d) Vẽ HK vuông góc AC tại K và trên tia HK lấy điểm E sao cho K là trung điểm của HE. Chứng minh DE < BD + CE
B1
1 We re very worried .....apending lots of money on energy in our home
A about b with c to d on
2 ill be in trouble if I ....my passport
A lose b will lose c lost d would lose
3 what was wrong...you yesterday ?- i had a cold
A for b to c lost d about
B2 viết phiên âm ra và khoanh
1 a architect b church c children d armchair
2 a general b garden c go d get
3 a cancel b ceilling c calling d cupboard
4 a calorie b carve c collage d centre
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B1
1 We re very worried .....apending lots of money on energy in our home
A about b with c to d on
2 ill be in trouble if I ....my passport
A lose b will lose c lost d would lose
3 what was wrong...you yesterday ?- i had a cold
A for b to c lost d about
B2 viết phiên âm ra và khoanh
1 a architect b church c children d armchair
2 a general b garden c go d get
3 a cancel b ceilling c calling d cupboard
4 a calorie b carve c collage d centre
Từ đẳng thức ad=bc(với b,d\(\ne\)0) , hãy suy ra tỉ lệ thức \(\frac{a}{b}=\frac{c}{d}\).Giải thích tại sao?
B1 choose the word that has the underlined part prononnced differenthly
1 A considered B constructed C carvel D cycled
2 A allerey B calorie C carve D fragile
3 A measure B pleasure C television D sugar
4 A eggshell B experts C volunteers D noodles b2 Find out the mistake in each sentence
1 I find making pottery is interesting
A I B making C pottery D is interesting
2 the room smells bad . Somebody smoked in here
A the B bad C smoked D here
3 I...
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B1 choose the word that has the underlined part prononnced differenthly
1 A considered B constructed C carvel D cycled
2 A allerey B calorie C carve D fragile
3 A measure B pleasure C television D sugar
4 A eggshell B experts C volunteers D noodles b2 Find out the mistake in each sentence
1 I find making pottery is interesting
A I B making C pottery D is interesting
2 the room smells bad . Somebody smoked in here
A the B bad C smoked D here
3 I think classical music is different to country music
A think B is C different D to
4 Let's have noodels with any beef or pork
A have B with C any D or
( help me ! )
I. Choose the word that has the underlined part pronounced differently from the others
1. a) ability b) marine c) safe d) organize
2. a) diver b) risk c) district d) quick
3. a) adult b) undersea c) result d) surprise
4. a) breathe b) clear c) sea d) increase
5. a) cyclist b) choice...
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I. Choose the word that has the underlined part pronounced differently from the others
1. a) ability b) marine c) safe d) organize
2. a) diver b) risk c) district d) quick
3. a) adult b) undersea c) result d) surprise
4. a) breathe b) clear c) sea d) increase
5. a) cyclist b) choice c) ocean d) surface
Three words have the same vowel sound one word doesn’t. Which one is it? (0) is an example for you. 0) a-cat b-bat c-that d-hate 1) a-book b-look c-floor d-cook 2) a-nine b-fine c-kind d-thing 3) a-set b-between c-get d-met 4) a-husband b-busy c-must d-bus 5) a-do b-go c-so d-know
Cho tam giác ABC có BC=5cm. Trên tia AB lấy điểm K và D sao cho AK=BD. Vẽ KI song song với BC; DE song song với BC (I,E\(\in\)AC)
a) Chứng minh AI=CE
b) Tính độ dài DE+KI
EXERCISE 3:Choose the letter A, B, C, or D to show the underlined part that needs correction.1. Mrs. Emmanuelle told to Alice to give her a hand. A B C D2. John said the taxi driver to turn left at the first traffic lights. A B C D3. Mary ordered John if he could carry her suitcase, please. A B C ...
Đọc tiếp
EXERCISE 3:
Choose the letter A, B, C, or D to show the underlined part that needs correction.
1. Mrs. Emmanuelle told to Alice to give her a hand.
A B C D
2. John said the taxi driver to turn left at the first traffic lights.
A B C D
3. Mary ordered John if he could carry her suitcase, please.
A B C D
4. Johnson Nancy Lee asked me if would I like to have dinner with her.
A B C D
5. Hoa asked Lan whether did she like sports or not.
A B C D
6. Ba told to Tuan if he could ride his bicycle to school.
A B C D
7. Phong asked Peter whether he enjoys reading books or not.
A B C D
8. Mary promised her boy friend that she would expect to see him next Wednesday.
A B C D
9. A tourist asked how far was it from Ho Chi Minh City to Hue.
A B C D
10. He asked Lan how many people there are in her family.
A B C D
11. Minh’s friends asked him how long would he stay in Paris.
A B C D
12. She asked me if he wants to buy any second-hand books.
A B C D
13. He wanted to know Hong if would have time to play badminton regularly.
A B C D
14. My mother told me that I work very ha rd.
A B C D
15. He said they had a lift very often but it doesn’t work.
A B C D
16. The teacher asked me if I could answer this question.
A B C D
17. I asked his mother if he went to work by bus or not.
A B C D
18. He promised me he’ll come with you as soon as he was ready.
A B C D
19. My brother said he must to write some letters then.
A B C D
20. Peter asked me did not to stay up late and advised me to go to bed early.
A B C D