Ta có MD // AE (vì MD // AB)

        ME //AD (vì ME // AC)

Nên AEMD là hình bình hành, I là trung điểm của DE nên I cũng là trung điểm của AM, do đó A đối xứng với M qua I

GT: Cho hình 82, trong đó MD // AB, ME // AC

KL: Chứng minh A đối xứng với M qua I

                                 GIẢI:

Ta có: MD // AE (vì MD // AB)

         ME // AD (vì ME // AC)

Nên AEMD là hình bình hành, I là trung điểm của DE nên I cũng là trung điểm của AM, do đó A đối xứng với M qua I

chào bạn đề là gì ạ

đề bài là viết  về gì hả hả bn?

Mình chưa hiểu mấy

This is my birthday á

Đề bài là gì vậy??

mik có mà giờ viết ra mệt wa

Dear Hoang Anh, I am having a wonderful time in Hue. The people are very friendly and hospitable but the weather is rather cold and humid. In Hue, I visited my uncles and aunts. I met all my cousins and we were all happy to see each other. My cousin Nam showed me round every interesting place in Hue such as: Trang Tien Bridge, Ngo Mon Gate, Mausoleums of Nguyen Dynasty, Thien Mu Pagoda, cct. It was very exciting. I bought lots of souvenirs and photos for my family and friends. See you soon. Your friend, Hoa

November 10th

Dear Minh Thu,

I am having a good time with my family in Hanoi. Hanoi is fantastic! There are so many interesting places to visit here. I love Quoc Tu Giam the most. It's a very famous place to foreigners and Vietnamese people. I had eaten a lot of street foods here. They're cheap and delicious. The weather is perfect too. Tomorrow we'll visit Uncle Ho's Mausoleum. It's great!

Love,

Louis

don't understand

chép giùm cái đề:D

bài đó tên gì cho xin cái tên:D

sorry bn

mik học lớp 5 rồi

ko có sách lớp 4

bn có thể chụp ảnh hoặc ghi ra để mik làm hộ 

có dc ko???????????

bài này từ 23 tháng 12 năm 2018 rồi mà sao lại cập nhật

bạn ơi video nào bạn ?bạn phải đăng lên mình mới trả lời được á

Mik ko hiểu bn nói đến video nào

Đây ạ:

Tet is a national and family festival. It is an occasion for every Vietnamese to have a good time while thinking about the last year and the next year. At Tet, spring fairs are organized, streets and public buildings are brightly decorated and almost all shops are crowded with people shopping for Tet. At home, every is tidied, special food is cooked, offerings of food, fresh water, flowers and betel are made on the family altar with burning joss- sks scenting the air. First-footing is made when the lucky visitor comes and children are given lucky money wrapped in a red tiny envelope. Tet is also a time for peace and love. During Tet, children often behave well and friends, relatives and neighbors give each other best wishes for the new year

All of the special holiday in my country,I Tet the most.Tet is an occasion to everyone get together and warm atmosphere.Before Tet holiday,everyone prepares many things and decorates their house.I plan a lot of flower in front of my house and buy many things such as clothers and foods....

Besides,most of the streets also are decorated beautifully with colorful lights and flowers.During Tet,I spends more time on visiting my relatives,friends.Especially,I give to each other the best wishes for the new year.Tet is an opportunity for children receive lucky money.There is a funny thing that people try to avoid argument or saying any bad things at Tet.I love Tet holiday!

Maybe this arle is not really good but I hope you love it and wish you will have the best score in the English speaking exam!

GOOD LUCK!

I'm so sorry!I have two mistakes in my arle!"I Tet the most."and"Maybe this arle is not really good...!"