ДЗ Лиза 08.02 треугольники 1

Quiz
•
Mathematics
•
9th Grade
•
Easy
Дарья Прохорова
Used 1+ times
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11 questions
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1.
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1 min • 1 pt
2.
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3.
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5.
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Точки M и N являются серединами сторон AB и BC треугольника ABC соответственно. Отрезки AN
и CM пересекаются в точке O, AN=6, CM=9. Найдите ON.
6.
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1 min • 1 pt
Прямая, параллельная стороне AC треугольника ABC, пересекает стороны AB и BC в точках M и N соответственно, AC=21, MN=14. Площадь треугольника ABC равна 27. Найдите площадь треугольника MBN.
7.
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1 min • 1 pt
На гипотенузу АВ прямоугольного треугольника АВС опущена высота СН, АН = 3, ВН = 27. Найдите СН.
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