Предмет: Математика, автор: liza3042

У трикутнику АВС Кут С дорівнює 60⁰, а кут А більше за кут С на 43⁰.
Знайдіть кут В. Визначте вид трикутника. ​

Ответы

Автор ответа: 7x8
0

Ответ:

∠B=17⁰

Тупокутний трикутник.

Пошаговое объяснение:

∠С - 60⁰

∠А більше за кут С на 43⁰

∠B - ?

1) 60⁰+43⁰=103⁰ - ∠А

2) 180⁰-(60⁰+103⁰)=180⁰-163⁰=17⁰ - ∠B

Тупокутний трикутник.

Автор ответа: Пеппер
0

Ответ:

17°, тупокутний

Пошаговое объяснение:

∠С=60°, тоді ∠А=60°+43°=103°.

∠В=180-60-103=17°

Трикутник має кут 103°, отже він тупокутний.

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