Cho tam giác ABC có góc B = góc C

a, Chứng minh góc B là góc nhọn.

b, Vẽ tia AH cắt cạnh BC tại H. Chứng minh rằng:

1.Nếu AH vuông góc với BC thì AH là tia phân giác của góc BAC.

đọc đoạn văn sau và trả lời T hoặc F cho các câu hỏi bên dưới

Look at the photo, this is Hanh. Her family has four people: her parents, her elder sister Hung, and Hanh. Hanh and her borther go to the same middle school in Ba Dinh District.They go to school by bike. Their house is not far from the school. Their father is a doctor. He goes to the hospital by motobike every day. Their mother is a nurse; she works in the same hospital with their father. Their parents are very kind to sick people.

1, Hanh's school is near her house ................................

2, Their grandparents live with their family .................................

3, Hanh and her brother don't go to school by bus ...............................

4,Hanh goes to a middle school, anh her brother goes to a high school ...................................

5, Their parents work in different hospital .......................................

đặt câu hỏi cho từ trong ngoặc

1, he is "a jounalist"

.........................................................................................

2, my books is " on the desk"

.............................................................................................

3, There are " three bedrooms" in Lan's house

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viết các câu sau thành câu hoàn chỉnh

1 there\ hotel \ is\ me\ excuse\ near\ a\ here?

..................................................................

2 railway\ show\ you\ me\ way\ station\could\ the\ the\ to?

.........................................................................................

3 ha noi\ ho chi minh city\ is \ far\ from\ it\ how\ to?

......................................................................................

4 envelopes\ stamps\ some\ need\ i\ and\ buy\ to.

..................................................................................

5 house\ bike\ our\ go\ us\ it\ ten\ takes\ to\ from\ to\ zoo\ the\ by\ minutes.

.....................................................................................

6 needs\ a\ LAN\ to buy\ for\ would\ mail\ we\ some\ like

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