mn ơi giúp em gấp ạ help 
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giúp em với mn ơi,e đag cần gấp, mn giúp em với ạ
31 tháng 10 2021
a: Xét ΔBAC có
D là trung điểm của AB
M là trung điểm của AC
Do đó: DM là đường trung bình của ΔABC
Suy ra: DM//BC và \(DM=\dfrac{BC}{2}=3.5\left(cm\right)\)
NQ
0
GH
0
Mn ơi giúp em, em cần gấp ạ
1 tháng 2 2023
1.Yes, they do
2..Yes, it is
3.People buy fruits and flowers from the market and decorate their house
4.People visit their family and friends
6 tháng 10 2021
1,C
2,C
3,C
4,A
1,We have learnt E for 4 years
2,It has been 3 years since I last saw her
3,He has not smoked since last year
4,Loan last wrote to you a month ago
5,Mai began singing when she was 7
6,They stopped produced this...toy long time ago
7, It is 2 hours since we watched TV
8,The last time I heard him was August
9,The last time Mr Brown taught E at this school was on January 10th
1. My father is clever enough to repair his car
2. He wasn't hard-working enough to get good grades
3. The man is not rich enough to buy this bike
4. That house is not big enough for they to live in
5. The weather was bad enough for the singer sing
6. He is weak enought to lift all those suitcases
7. We are going to visit their grandmother next Sunday