Ответ по предмету Математика: Запиши и реши в столбик 7090*4100 30150*2400 5200*9060

Предмет: Геометрия, автор: ababo9428

1 ВАРИАНТ пожалуйста ГЕОМЕТРИЯ 8 КЛАСС
1.Запишите четырехугольники, у которых все углы прямые: прямоугольник , ромб , квадрат.
2.а) Существует ли выпуклый пятиугольник, углы которого равны 100°, 110°, 155°, 165°, 200° . Ответ обоснуйте.
b) Найдите внешние углы правильного шестиугольника.
3. Периметр параллелограмма равен 32 см. Найдите стороны параллелограмма, ес-ли две его стороны относятся как 3:5.
4.В равнобедренной трапеции боковая сторона равна 8 см, а средняя линия 10см. Найдите периметр трапеции.

5 лет назад

Предмет: Английский язык, автор: ilonahripun2145

Keeping Fit Good health is not something we are able to buy at the chemist's and we can get back with a quick visit to the doctor when we are ill. We often ruin our health by poor diet, stress, a bad working environment, and carelessness. By keeping fit, changing bad habits or the surrounding conditions we can make our body last without major problems. And what are the ways to keep fit? First of all you must miss no chance of outdoor activities. Skating or skiing in winter and swimming in summer must become part of your everyday life. Second, exercise. You must exercise whenever you can - in the morning or in the evening. Third, regular meals are a must if you want to keep fit. Try to avoid going without any food for hours. The Romans spoke of health in a proverb: "A healthy mind in a healthy body." In addition to physical health, an understanding of mental health is also important. The body does a great deal to take care of itself, but by learning a few important health rules, it is possible to help the body to work at its best. Nowadays, health specialists promote the idea of wellness for everybody. Wellness means achieving the best possible health within the limits of your body. Some people prefer a lot easier exercise to more strenuous exercise. Some people like playing three sweaty, competitive games of tennis. The English people in the 1990's have become very concerned about their health. In fact, fitness has become almost a national obsession. In large cities and small towns alike, people jog regularly, join sports teams and go to health clubs and Fitness Centers to work out.

Put the sentences in the right order according to the text. 1. The ideas of health specialists. 2. Ways of keeping fit. 3. How English people take care about their health 4. The reasons of poor health 5. The importance of physical and mental health.

5 лет назад

Предмет: Геометрия, автор: Hairper

Вычисли угол DBC, если ∢CBA=111°.

Lizšpl.PNG

∢DBC=
°.

5 лет назад

Предмет: Математика, автор: JNJNJN

Как найти высоту правильно четырёхугольной пирамиды, если сторона основания равна 13 дм, а апофема равна 18 дм? Срочно! Спасибо!

9 лет назад

Предмет: Математика, автор: zajjcaleksa

в цирковом представление выступали9 собачек и 5 медвежат.на сколько собачек больше,чем медвежат,выступали в этом цирковом представлении? очень нужно условие задачи

9 лет назад

Запиши и реши в столбик 70904100 301502400 5200*9060

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