tên bạn kì v

ko

tên gì kì vậy bạn

ko bt

ko

bt

 Ta có \(HN\perp AC\) và \(AB\perp AC\) nên AB//HN. Do đó tứ giác ABHN là hình thang        (1)

 Mặt khác, tam giác ABC vuông tại A có trung tuyến AM nên \(AM=\dfrac{1}{2}BC=BM\), suy ra tam giác MAB cân tại M hay \(\widehat{ABH}=\widehat{NAB}\)           (2)

 Từ (1) và (2), ta suy ra tứ giác ABHN là hình thang cân. (đpcm)

Next week , In my free time, I love to relax myself by listening to music and watching my favorite films. I study all day, so after 7PM is the only time that I can use for myself. I have a smart phone, so I can download a lot of songs from the Internet for free, and I usually hear them with my headphone. Sometimes when my parents are not at home, I turn on the loudspeakers to have the best experience with music, but most of the time I just listen in silence. Besides music, movies are my biggest love. When I am not listening to the songs, I turn on my computer and watch some of the lasted movies on the websites. Since most of the best films are from Europe and America, this is also a way for me to improve my English skills. I usually do not use the subtitle, and I try to hear directly what the actors and actresses are saying. My parents want me to read books to even learn in my free time, but I think I should do what I actually love to make myself comfortable.

best

happiest

funny

smallest

laziest

quickly

more difficult 

most difficult 

hard 

extremely well 

regularly - most wonderful

My house is bigger than yours.

This flower is more beautiful than that one.

This is the most interesting book I have ever read.

Non-smokers usually live longer than smokers.

Which is the most dangerous animal in the world?

A holiday by the sea is better than a holiday in the mountains.

It is strange but often a coke is more expensive than a beer.

Who is the richest woman on earth?

The weather this summer is even worse than last summer.

He was the cleverest thief of all.

1 bigger

2 more beautiful

3 most interesting

4 longer

5 most dangerous

6 better

7 more expensive

8 richest

9 worse

10 clecerest