Trong các hình sau: hình chóp đều, hình chóp cụt đều, hình lăng trụ đứng, hình hộp chữ nhật, hình lập phương, có bao nhiêu hình có mặt bên vuông góc với mặt đáy?

Các câu hỏi liên quan

1. It’s not good to spend a lot of time watching TV. You ___________________________________________________________ 2. Antarctica is colder than any other place in the world. Antarctica is ___________________________________________________________ 3. Shall we go to Times Square to welcome the New Year? Why don’t ___________________________________________________________ 4. A bicycle is more convenient than a car in towns. A car is ___________________________________________________________ 5. Turn right at the first turning. Take ___________________________________________________________ 6. I won't be able to do anything unless I have a quiet room. If ___________________________________________________________ 7. ___________________________________________________________ ? They go to the English club twice a week. 8. ___________________________________________________________ ? She missed a week's lessons because of illness. 9. ___________________________________________________________ ? That newsreader usually gets to work by bus. 10. ___________________________________________________________ ? The game show lasted for two hours and a half. 11. You can trust me to finish the exercise on time. I promise___________________________________________________________ 12. I advise you not to eat lots of sweets. You___________________________________________________________ 13. The children like to watch dragon dance in the street at Tet. The children enjoy __________________________________________________________ 14. It's the first time that I have ever talked to a foreigner. I have __________________________________________________________ 15. Phong was sleepy, but he still stayed up late to watch the end of the game on TV. Although__________________________________________________________