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hoangngocnt277
2 năm trước
Giúp mình với ạ, gấp lắm Cho hình chóp S.ABCD có đáy hình bình hành. Gọi M, N, P lần lượt là trung điểm của các cạnh SA, BC, CD. Xác định giao tuyến của ( MNP ) với tất cả các mặt của hình chóp ( nếu có )
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Các câu hỏi liên quan

Complete the sentences with suitable articles. 1. This house is very nice. Has it got ............... garden? 2. It’s a beautiful day. Let’s sit in ............... garden. 3. Can you recommend ............... good restaurant? 4. We had dinner in ............... most expensive restaurant in town. 5. There isn’t ............. airport near where I live ............ nearest airport is 70miles away. 6. “Are you going away next week?” - “No, ............... week after next”. 7. This morningIbought ............. newspaper and ............ magazine. ............ newspaper is in my bag but I don’t know where I put ............... magazine. 8. I saw............. accident this morning ............. car crashed into .............. tree. .............. driver of ............... car wasn’t hurt but ............... car was badly damaged. 9. There are two cars parked outside: ............... blue one and ............... grey one. ............... blue one belongs to my neighbors. I don’t know who ............... ownerof ............... grey one is. 10. My friends live in ............ old house in ............ small village. There is ........... beautiful garden behind ............... house. I would like to have ............... gardenlike this.

Complete the conversations with suitable question words. A: Hey. (1) ................... will you go home? B: About 5 pm. And you? A: Me too. (2) .................... do you often do in your free time? B: I often listen to music or watch TV. A: Oh. I also often watch TV in my free time. (3) ............... hours a day doyou watch TV? B: About one hour. How about you? A: About three hours. (4) .................... don’t you spend more time watchingtelevision? There are a lot of interesting programmes on TV. B: I heard that watching too much TV is bad for our health. A: Really? (5) .................... does it affect our health? B: It can hurt our eyes and mentality, so you should watch TV less. A: Oh no. I will do so. Thank you very much! (6) .................... are you goingto do this weekend? B: I am not sure. (7) .................... is your plan? A: I am thinking of going to My Khe beach. B: (8) .................... is it located? A: It is in Da Nang city. B: (9) .................... is it from our town to that beach? A: Not really far, just about 30 km. A: (10) .................... are you going there? B: I’m going by car. B: (11) .................... are you going with? A: Maybe I’m going alone. Would you be interested in joining me? B: Sure, I’d love to. (12) .................... are you going to leave? A: I think that we can leave around 8:00 on Saturday morning. A: That sounds good!

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