Trung binh cong hai canh lien tiep hinh chư nhat la32. Biet chieu dai hon chieu rong 48 cm. Tinh die tich tich hinh chu nhat

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Đáp án: 448 cm2

Giải thích các bước giải: TBC 2 cạnh của hình chữ nhật là 32 nên tổng 2 cạnh đấy là 32*2=64. Mà hiệu của chiều dài và rộng là 48 nên chiều dài là: (64+48)/2=56cm, chiều rộng là 64-56=8cm. Vậy diện tích HCN là 56*8=448 cm2

Đáp án: tổng dài rộng 32x2=64

Chìu dài (64+48):2=56

Chìu rộng 64-56=8

D tích 56x8=448cm2

Giải thích các bước giải:

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This is John . He’s a teacher. He’s old and a little fat. He has short black hair. He works at the school. He teaches English. Every day he gets up at half past six in the morning. He takes a shower and puts on a shirt and tie. Then he eats breakfast at seven o’clock. At half past seven, he rides his motorcycle to school. Tony starts work at eight o’clock. He cleans the classroom. Then, he talks with his students’ parents. He starts teaching at nine o’clock. At twelve o’clock, he eats lunch. He teaches again in the afternoon. He goes home at half past four. In the evening, he feeds his goldfish and he watches TV. He eats dinner at half past six. Then he corrects students’ homework. At ten o’clock, he goes to bed. 1. What’s his name? …………………………………………………………………….. 2. What does he look like ? …………………………………………………………………….. 3. What time does he get up ? …………………………………………………………………….. 4. What time does he eat breakfast ? …………………………………………………………………….. 5. What time does he go home ? …………………………………………………………………….. 6. What time does he eat dinner? …………………………………………………………………….. 7. What time does he go to bed? …………………………………………………………………….. 8. What does he do in the evening ? ……………………………………………………………………..

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