chu vi hcn 90 m chieu dai hon chieu rong 10 tinh chieu rong va chieu dai

2 câu trả lời

nửa chu vi hcn là

90:2=45(m)

chiều rộng hcn là

(45-10):2=17,5(m)

chiều dài hcn là

45-17,5=27,5(m)

đáp số: chiều rộng:17,5 mét

chiều dài:27,5 mét

Đáp án:

Giải thích các bước giải:

Nửa chu vi của hình chữ nhật là:

90 : 2 = 45 (m)

chiều dài của hình chữ nhật là:

(45 + 10) : 2 = 27 (m)

chiều rộng của hình chữ nhật là:

27 - 10 = 17 (m)

Đáp số: chiều dài: 27 m

chiều rộng: 17 m

Lưu ý: chiều dài chỉ là làm thành số tự nhiên, nó là số thập phân

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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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