Предмет: Геометрия, автор: dobrikvarvara2009

1. Знайдіть кути рівнобедреного трикутника, якщо один із них на 24° більший за другий. Скільки розв'язків має задача?
Срочно!​

Ответы

Автор ответа: KirillKS555
1

Ответ:

У рівнобедреному трикутнику два кути є рівними, оскільки він має дві рівні сторони і, відповідно, два рівні кути при основі. Зазначено, що один із кутів на 24° більший за інший. Таким чином, ми можемо позначити один кут як "x" і інший кут як "x + 24°".

Задача має один розв'язок. Щоб знайти ці кути, ми можемо скористатися фактом, що сума всіх кутів у трикутнику дорівнює 180°. Отже, ми можемо записати рівняння:

x + (x + 24°) + угол_при_основі = 180°,

де "угол_при_основі" - це кут при основі рівнобедреного трикутника. Оскільки цей кут також рівний x + 24° (оскільки трикутник рівнобедрений), ми можемо спростити рівняння:

2x + 24° + x + 24° = 180°.

Тепер обчислимо x:

3x + 48° = 180°.

Віднімемо 48° від обох боків:

3x = 180° - 48°,

3x = 132°.

Тепер поділимо обидва боки на 3, щоб знайти значення x:

x = 132° / 3,

x = 44°.

Отже, один кут дорівнює 44°, а інший кут дорівнює x + 24°, тобто 44° + 24° = 68°. Таким чином, кути рівнобедреного трикутника дорівнюють 44° і 68°. Задача має один розв'язок.

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Предмет: Английский язык, автор: nektovich2000
During your school day you meet several different teachers. Some of them might be friendly, some funny, some more active than others and some might seem too strict. Teachers are different, just like students are different. In places where a lot of people work together, like the classroom, everyone has to make an effort to get along and work together.
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But what does "getting along" with your teacher mean? It means that both you and your teacher feel relaxed in class. Your teacher wants you to pay attention, be respectful and try your best to learn. You probably want the same thing from your teacher - to show you respect and understanding, answer your questions and help you learn. Teachers want to get along with their students and enjoy seeing them learn. You don't have to be friends, just partners who work well together.
Even if a certain teacher isn't your favourite, you can still have a good relationship with him or her. You just have to fulfil your basic responsibilities as a student: come to each lesson ready to learn, have all the right things with you, listen when your teacher is talking and try to do your best. Some students feel that certain teachers are not fair or even pick on them. You have to be very sure before you make that accusation, but if you are sure, it's time to talk to your parents or your class teacher. It's possible, that your personality is just very different from your teacher's and he or she has trouble understanding you. If you show that teacher that you want to make the situation better, he or she will probably do everything to make that happen.
Then there are some teachers that are so good that their students never forget them. Some students may even go back to visit the teacher long after finishing school.
That's a real compliment to a teacher - that he or she was so special that the students want to keep in touch. And there's an even higher compliment you can give a favourite teacher - grow up to become someone else's favourite teacher yourself!

Answer the questions according to the text.

1. Why is it important to have a good relationship with your teacher?
2. What does getting along with your teacher mean?
3. What are the basic responsibilities of a student?
4. What can you do if you feel like a certain teacher is not being fair to you?
5. What is the highest compliment you can give a teacher?