Вопрос школьника по предмету Геометрия
Даны катеты А и гипотенуза С прямоугольного треугольника.Найдите второй катет и углы треугольника.
1)а=8 см, с=10 см;
2)а=5 см, с=13 см;
3)а=6 см, с=9 см;
Ответ учителя по предмету Геометрия
1)с2-а2=в2
100-64=36см
Ответ:6см
2)169-25=144см
Ответ:12см
3)81-36=45см
Ответ:3корень5
Похожие вопросы от пользователей
1. When we walked … farther down the road, we met another group of students. 2. Have you got … money on you? — I’m sorry. I have very … money at the moment. 3. At the conference we met … peo¬ple whom we knew well. 4. There are very … old houses left in our street. Most of them have already been pulled down. 5. If you have … spare time, look through this book. You will find … stories there which are rather interesting. 6. There are … things here which I cannot understand. 7. Shall I bring … more chalk? — No, thank you. There is … chalk on the desk. I hope that will be enough for our lesson. 8. He had … English books at home, so he had to go to the library for more books-. 9. She gave him … water to wash his hands and face. 10. I’d like to say … words about my journey. 11. After the play everybody felt… tired. 12. Let’s stay here … longer: it is such a nice place. 13. Were there … new words in the text? Did Peter spend … time learning them? 14. There was not … hay in the barn, and the chil¬dren could play there. 15. My friend is going to the concert this evening because he hasn’t got… work to do. 16. My mother knows German … and she can help you with the translation of this letter. 17. He’s got very … time left. If he doesn’t hurry up, he’ll miss the plane. 18.I have very … drinking water left.
ПОМОГИТЕ ПОЖАЛУЙСТА