Help me pls 1. CMR trong một hình chóp tam giác bất kì, tồn tại ba cạnh xuất phát từ cùng một đỉnh mà một cạnh nhỏ hơn tổng của hai cạnh kia 2. Hình chóp A.BCD có độ dài sáu cạnh bằng 7, 13, 18, 27, 36, 41. Cạnh nào đối diện với cạnh có độ dài 41?

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Exercise 2: Using the given information, make conditional sentences with IF 1. He didn't hurry, so he missed the train. → If ................................................................................................................... 2. We didn't go because it rained. → If it hadn't .................................................................................................... 3. We got lost because we didn't have a map. → If we ............................................................................................................. 4. He lost his job because he was late every day. → If he .............................................................................................................. 5. The airport was closed. She didn't fly to Rome. → If ................................................................................................................... 6. Sue felt sick because she ate four cream cakes. → If Sue ............................................................................................................ 7. My brother didn't leave the car keys, so I couldn't pick him up at the station. → If my brother ................................................................................................ 8. We didn't go on holiday because we didn't have enough money. → If we ............................................................................................................. 9. He didn't have the ticket to the game last week. He wasn't be able to get in. → If ................................................................................................................... 10. Robert got a bad cough because he started smoking cigarettes. → If Robert .......................................................................................................