Предмет: Геометрия, автор: sofialiushnia

У прямокутному трикутнику ABC ∠C=90°, ∠B дорівнює 30°. Знайдіть катет,

протилежний B, якщо гіпотенуза дорівнює 54 см.

Ответы

Автор ответа: lizziss
1

Ответ:

Катет буде дорівнювати 1/2 гіпотенузи — за властивістю прямокутного трикутника з кутом 30°

54 · 1/2 = 27 см

Відповідь: невідомий катет дорівнює 27 см

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Living in the City.
Living in the city has both advantages and disadvantages. From one hand, it is always easier to find a good job or to visit interesting places and exhibitions. There is also a good choice of public transport. From the other hand, the noise and pollution level in big cities is really high. As for me, I quickly become tired of it. I live in Krasnodar with my family. It’s the biggest city in Krasnodar region and its capital. It is also the cultural, political and social center of the region. I should say that the city is really beautiful and many people from smaller towns and villages come to work and study here. What they like about the city is that there are lots of interesting things to do and places to see. They also like job and study opportunities. There are lots of good universities and large companies in Krasnodar. There are also many ways to spend the weekends, for example, visiting a museum, going to the cinema or theatre, shopping, eating in good restaurants, going to concerts, etc. If people want to relax they go to parks for a walk or to read a book. In general, the city offers various opportunities and you never get bored. However, there are some disadvantages as well. Sometimes it’s difficult to find a cheap apartment, so living in a city becomes very expensive. The roads are full of cars which pollute the air and the traffic is really heavy on weekdays. Public transport is also over-crowded. That’s why many people leave the city at weekends. They try to relax in the countryside, where the air is much fresher and there isn’t any noise from cars. We also go away each Saturday and Sunday to visit my grandparents.
Questions:
1) What is the capital of Krasnodar region?
2) What is really heavy on weekends?
3) What do you can visit in the city?
6 лет назад