Topic 1

Living a healthy lifestyle brings many benefits to our lives. First, it helps prevent serious illnesses like heart disease and diabetes. When we eat a balanced diet and exercise regularly, our immune system becomes stronger. Second, a healthy lifestyle improves mental health. We feel more energetic, positive, and less stressed after doing sports. Finally, it helps us maintain a fit body weight. In short, staying healthy allows us to enjoy life more and live longer.

Topic 2

My family has several meaningful traditions during the New Year. Before Tet, we always clean the house together to remove bad luck from the previous year. We also decorate the living room with peach blossoms. On New Year's Eve, the whole family gathers to eat a special meal and watch fireworks. On the first day of the year, we visit our grandparents to wish them longevity. These customs help us bond and preserve our culture.

Topic 3

To help my family, I often take on many household chores. Every day, I help my mother wash the dishes after meals, clean the house, and fold the laundry. I also frequently go to the market to buy small items when needed. On weekends, I assist my father in watering the plants in the garden and washing the motorcycle. These small actions not only help ease my parents' burden but also train me to be independent and responsible, contributing to maintaining a harmonious family atmosphere.

Topic 1

Living a healthy lifestyle brings many benefits to our lives. First, it helps prevent serious illnesses like heart disease and diabetes. When we eat a balanced diet and exercise regularly, our immune system becomes stronger. Second, a healthy lifestyle improves mental health. We feel more energetic, positive, and less stressed after doing sports. Finally, it helps us maintain a fit body weight. In short, staying healthy allows us to enjoy life more and live longer.

Topic 2

My family has several meaningful traditions during the New Year. Before Tet, we always clean the house together to remove bad luck from the previous year. We also decorate the living room with peach blossoms. On New Year's Eve, the whole family gathers to eat a special meal and watch fireworks. On the first day of the year, we visit our grandparents to wish them longevity. These customs help us bond and preserve our culture.

Topic 3

To help my family, I often take on many household chores. Every day, I help my mother wash the dishes after meals, clean the house, and fold the laundry. I also frequently go to the market to buy small items when needed. On weekends, I assist my father in watering the plants in the garden and washing the motorcycle. These small actions not only help ease my parents' burden but also train me to be independent and responsible, contributing to maintaining a harmonious family atmosphere.

Topic 1

Living a healthy lifestyle brings many benefits to our lives. First, it helps prevent serious illnesses like heart disease and diabetes. When we eat a balanced diet and exercise regularly, our immune system becomes stronger. Second, a healthy lifestyle improves mental health. We feel more energetic, positive, and less stressed after doing sports. Finally, it helps us maintain a fit body weight. In short, staying healthy allows us to enjoy life more and live longer.

Topic 2

My family has several meaningful traditions during the New Year. Before Tet, we always clean the house together to remove bad luck from the previous year. We also decorate the living room with peach blossoms. On New Year's Eve, the whole family gathers to eat a special meal and watch fireworks. On the first day of the year, we visit our grandparents to wish them longevity. These customs help us bond and preserve our culture.

Topic 3

To help my family, I often take on many household chores. Every day, I help my mother wash the dishes after meals, clean the house, and fold the laundry. I also frequently go to the market to buy small items when needed. On weekends, I assist my father in watering the plants in the garden and washing the motorcycle. These small actions not only help ease my parents' burden but also train me to be independent and responsible, contributing to maintaining a harmonious family atmosphere.

Câu a): Tứ giác \(A M B Q\) là hình thang vuông

• Vì \(A x \bot A C\), \(B y \parallel A C\) → \(A M \bot M B\)
• nên Góc \(AMB=90^{\circ}\), AB là đáy chung
• suy ra AMBQ là hình thang vuông
• Câu b): Tam giác \(P I Q\) là tam giác cân
• \(P\): trung điểm \(A B\)
• \(M P\): trục đối xứng của hình thang \(A M B Q\)
• suy ra \(Q\) đối xứng với \(I\) qua \(M P\)
• nên PI = PQ
• suy ra tam giác PIQ cân tại P

Câu a): Tứ giác \(A M B Q\) là hình thang vuông

• Vì \(A x \bot A C\), \(B y \parallel A C\) → \(A M \bot M B\)
• nên Góc \(AMB=90^{\circ}\), AB là đáy chung
• suy ra AMBQ là hình thang vuông
• Câu b): Tam giác \(P I Q\) là tam giác cân
• \(P\): trung điểm \(A B\)
• \(M P\): trục đối xứng của hình thang \(A M B Q\)
• suy ra \(Q\) đối xứng với \(I\) qua \(M P\)
• nên PI = PQ
• suy ra tam giác PIQ cân tại P

Câu a): Tứ giác \(A M B Q\) là hình thang vuông

• Vì \(A x \bot A C\), \(B y \parallel A C\) → \(A M \bot M B\)
• nên Góc \(AMB=90^{\circ}\), AB là đáy chung
• suy ra AMBQ là hình thang vuông
• Câu b): Tam giác \(P I Q\) là tam giác cân
• \(P\): trung điểm \(A B\)
• \(M P\): trục đối xứng của hình thang \(A M B Q\)
• suy ra \(Q\) đối xứng với \(I\) qua \(M P\)
• nên PI = PQ
• suy ra tam giác PIQ cân tại P