Предмет: Геометрия, автор: habibullinkamil411

В треугольнике ABC угол A равен 90 градусов а угол C на 40 больше угла B Найдите углы B и C ​

Ответы

Автор ответа: Jenyok06
1

Ответ:

Угол В-25; Угол С-65

Объяснение:

Если угол А равен 90 градусов значит это треугольник-прямоугольный

Сумма углов в треугольнике равна 180 градусов

Угол В+ угол С=90 градусам

Пусть угол В-х,тогда угол С- х+40

Составим уравнение:

2х+40=90

2х=50

х=25(угол В)

угол С= 90-25=65

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My University

There are many universities in Moscow. The head of a university is Rector. Usually there are several faculties in a university. Each faculty has a number of specialized departments and is headed by dean. The course of studies lasts (продолжается) 5~6 years.

The academic year in this country's higher schools begins on the 1-st of September and is divided into two terms (semesters). Students take exams at the end of each semester. If the results of the examinations are good, students get grants. Twice a year students have vacations — two weeks in winter and two months in summer.

My University has several buildings, old and new ones. There are many various laboratories. There is a very good library and a computer center in the main building.

Every faculty has its own specialized library, laboratories, workshops and computer centers.

The first- and second-year students study general engineering subjects (общетехнические предметы). In the third year students begin to study specialized subjects.

A very good tradition of our University is that theory is accompanied by practical training. Students begin to work at the University's well-equipped (хорошо оборудованный) laboratories and in senior years at various plants, design offices and research institutes of this country.

It is interesting but difficult to study at our University, especially for the first-year students as they do not know yet how to organize their work and time.