My family has 4 members: dad, mum, my older sister and me. We are living in a quite large house in Yen Thanh. My house was built by the brick and was roofed by red roof. It's has five rooms: one living room; three bedrooms and a kitchen. The living room is large, it's was celebrated by many beautiful pictures on the wall. The bedrooms are very nice, one for my parents, two for my older sister and me. The kithen is so clean, there are: a stool, a washingmachine and a fridge. There are a lot of fruits and flowers around my house. I love my house very much because this is a place where I was borned and grow up. I used to have many memories of my childhood.I wish I can always live in this house to take care of my parents when they become elderly people.

Vì \(\Delta MNP\) cân mà có một góc bằng 60⁰ nên tam MNP là tam giác đều(dấu hiệu nhận biết tam giác đều)

\(\widehat{M}=\widehat{N}=\widehat{P}=60^0\)

\(\Delta BHE\) có: \(BE=BH\) nên \(\Delta BHE\) cân tại B

\(\Rightarrow\widehat{H_1}=\widehat{E}\) (*)

\(\widehat{ABD}\) là góc ngoài của \(\Delta BHE\) nên \(\widehat{ABD}=\widehat{H_1}+\widehat{E}\)

Từ (*) suy ra: \(\widehat{E}=\widehat{H_1}=\widehat{\dfrac{ABD}{2}}\Rightarrow\widehat{H_1}.2=\widehat{ABD}\)

Mà \(\widehat{ABD}=2.\widehat{D}\) nên \(\widehat{D}=\widehat{H_1}\)

Vì \(\widehat{H_1}=\widehat{H_2}\) (đối đỉnh) nên \(\widehat{H_2}=\widehat{D}\)

\(\Rightarrow\Delta HDF\) cân tại F

\(\Rightarrow FH=FD\left(1\right)\)
Lại có: \(\widehat{A_1}=\widehat{H_3}\) (cùng phụ 2 góc bằng nhau là \(\widehat{H_2}\) và \(\widehat{D}\) )

\(\Rightarrow\Delta AFH\) cân tại F

\(\Rightarrow FA=FH\left(2\right)\)

Từ \(\left(1\right)và\left(2\right)\) ta suy ra: \(FH=FA=FD\)

Tìm x,y,z biết: \(x^2+y^2+z^2+\dfrac{1}{x^2}+\dfrac{1}{y^2}+\dfrac{1}{z^2}=6\)

1. I need to take your temperature.

2. Did your mother wrrite a sick note for you?
3. The medicines don't cure a cold, but they only relieve the symptoms.

4. You should do exercises regulary to keep fit.

5. The students at our shool are having a medical check-up.

6. Your cold with last for a few days and then dissapear.

7. Do you know how to prevent the a cold?