Cho tam giác ABC có 3 góc nhọn, vẽ AH \(\perp\) BC. Vẽ HI và HK lần lượt \(\perp\) với AB và AC. Trên tia đối tia IH và KH lần lượt lấy E và F sao cho IE = IH, KF = KH

a, CM: AE =AF

b, Gia sư gốc BAC = 60 độ. Tính số đo các góc của tam giác AEF

Viết câu có nghĩa tương đương

1. They haven't cooked at home for a month

It's....................................................................

2.Jack got ill because of uhealthy food yesterday

Jack got ill because .................................................

3. Ths is a first time he's ever visited the complex of Hue monuments

He has never...............................................

4. She like sour food, but her brother doesn't

She is different ..................................................

5. Both my healthy and my career are important to me

My healthy is as ........................................................

6. My grandmother often brings me a basket of biscults at

A basket of biscults .............................................................

7. When did Emperor Ly Nhan Tong build the Imperial Academy?

When was the Imperial Academy ...............................................

8.What is the price of a set of steak and a drink?

How much ....................................................................

9. A lot of foreign tourists know Dong Ho folk paintings in Viet Nam

Dong Ho folk paintings ..........................................................................

Tối nay mk nộp bài rùi help me nha,please mina