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В трапеции ABCD с основаниями AD =9 см, BC = 4 см, проведён отрезок МК = 6 см, параллельный основанию АD, с концами на боковых сторонах трапеции. Площадь трапеции ABCD равна 52 см². Найдите площадь трапеции MBCK.
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Предмет:
Геометрия -
Автор:
antoinekzoo - 5 лет назад
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1. They sent me a telegram yesterday. 2. They discovered America in the 15th century. 3. Mum has done all the housework. 4. He bought a new TV set two days ago. 5. The children have eaten all the chocolate before dinner. 6. My brother has already fixed our computer. 7. His little son has made that drawing. 8. They visited the museum. 9. The teacher explained this difficult rule twice. 10. They are performing a new piece of jazz. 11. They have designed new scenery for the play. 12. The teacher will ask David at the lesson. 13. They had built a new library by the end of March. 14. They were writing a dictation at 2 o’clock yesterday. 15. She didn’t read this book. Все в страдательном залоге.
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Английский язык -
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mickey61 - 5 лет назад
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