Предмет: Геометрия, автор: ivananders08

Периметр равнобедренного треугольника ACB с основанием AC равен 40 см, а периметр равностороннего треугольника ACD равен 18 см.
Найди длину боковой стороны равнобедренного треугольника.

Ответ:
см.

Ответы

Автор ответа: Karinalavrenova715
0

Ответ:

1)21:3=7 см длина АС

2)(40-7):2=16,5 см длина АВ=ВС

Ответ: 16,5 см

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Английский язык, автор: Valechka1808
Complete the sentences choosing between: the Future Indefinite tense, the Present Continuous tense or to be going to: Williams: Have you seen this letter from the Ministry? Davis: Yes. I see they've made arrangements for the visit. Williams: Yes. The minister (to come) here next Monday. He (to arrive) on the 8.30 train. Davis: Have you got any plans for his visit? What he (to do) when he gets here? Wi1liams: Well, we (to show) him round the. new factory first. Davis: Right. I (to see) that all that stuff left by the builders is cleared up. Williams: Yes, and make sure that those electric wires are properly fixed. Davis: Don't worry about that. I (to have) a word with the chief electrician immediately. Williams: Then he (Го talk) to the workers on the production line. It's a bit difficult to say how long this (to take). Then we (to have) lunch with the members of the Board at 2 o'clock. At four o'clock we (to meet) to discuss the Government plans for promoting exports. They say they (to help) the companies that want to expand their ex-port markets. If we manage to convince them that our development projects are sound, they (to support) us financially. Davis: Look. Murphy says he (to conduct) tests on the BSM-3 prototype next week. I'd like the minister to see them. Williams: I promise you we (to show) them to him. Davis: When is he due to leave? Wi11iams: He (to leave) for London on the 6.30 train.
2 года назад
Предмет: Английский язык, автор: masha8922558080
1.(cheap) Samsung is cheaper then Nokia 2.(expensive) Nokia is Sony Ericsson 3. (Good) the camera in Samsung is better the camera in Sony Ericsson 4. (Bad) the camera in Sony Ericsson is the camera in Nokia 5. (Many) there are memory in Nokia in Samsung 6.
2 года назад
Предмет: Другие предметы, автор: adriana205
Диалог на татарском на тему домашние дела
2 года назад
Предмет: Русский язык, автор: Svpolechshuk2112
что такое извилины? дам 20 баллов
8 лет назад
Предмет: Химия, автор: talacum
Який об'єм етилену потрібно пропустити крізь воду, щоб отримати 200 г етанолу? Вкажіть умови перебігу реакції.
8 лет назад