Cầu 4: a) Trên củng một nửa mặt phẳng bờ chứa tia Ox. Vẽ 2 tia Oy và Oz sao cho xOy - 90° góc xOz -120°. Tia nào nằm giữa 2 tia còn lại? Vì sao? b) Trong từng trường hợp sau, vẽ hình và cho biết mỗi góc sau là góc vuông. góc nhọn, góc tủ hay góc bẹt? хоу - 90° alb =110° mPN = 180° ERK = 65°

Các câu hỏi liên quan

REPORTED SPEECH II. Change the following sentences into indirect sentences: 1. “I’m tired,” Trevor said. …………………………………………………………………………………………… 2. “Sorry. I wasn’t listening,” Hang said. …………………………………………………………………………………………… 3. “Is this your pencil?” he asked his pupil. ……………………………………………………………………………… 4. “I’m going to Paris soon,” she said. ……………………………………………………………………………………… 5. “It’s time to start revising (ôn lại) for the exam,” the teacher said. ………………………………………………………………………… 6. “The film will be interesting,” I thought. …………………………………………………………………………………… 7. “I can’t help you because I have too much to do,” she said. ……………………………………………………………………………………… 8. “Anne has bought the tickets.” She said to me. …………………………………………………………………………………… 9. “It took me three hours to get here because the roads are flooded” he told me. ……………………………………………………………………………… 10. “I think it’s a crazy (điên dại/ ngu xuẩn) idea. It’s won’t work” she said. ………………………………………………………………………………………… 11. The receptionist says “Breakfast is served between 7.00 and 9.00