Предмет: Геометрия, автор: анастасияблэк

Помогите( опять нужно "дано" и "доказательство"

Приложения:

Ответы

Автор ответа: chingizidka

Дано сама напишешь, оно на рисунке, списать не трудно
Есть такое свойство : Если две параллельные линии пересечены секущей, то накрест лежащие углы рачны
Значит угол FВД=ВАС
Есть признак параллельных прямых: Если при пересечении двух двух прямых секущей накрест лежащие углы равны, значит они параллельны. Значит АС парал. ВД

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Биология, автор: sidorovas776

Используя дихотомический ключ, определите беспозвоночное Животное под буковой D Покажите путь определения животного, обводя в круг слова > или «нет».

1 год назад

Предмет: Геометрия, автор: d09032010

4 ПОМОГИТЕ ПОЖАЛУЙСТА

1 год назад

Предмет: Математика, автор: sofafil261

помогите пожалуйста!!!!! дам 11 баллов

1 год назад

Предмет: Английский язык, автор: nosofi

21
The democratic countries expect their citizens to participate _________ governing the country.
Выберите один ответ.
of
in
for
to
at
with
on
22
I'm afraid you'll have to _________________ without the other photocopier until we can get the part we need from the suppliers.
do
make
take
23
What are the reasons ___________ the government involvement?
into
for
of
to
on
in
at
with
24
The great disadvantage ___________ barter is the fact that it depends ___________ a “double coincidence of wants”.
to, on
at, for
into, in
of, upon
25
The President’s ______________ reforms have put a lot of people out of work.
economics
economical
economists
economize
economies
economic
26
The central bank is responsible ___________ the operation in the banking system in the country.
with
of
for
on
to
in
at
into
27
My new car is more _________________ than the one I had before.
economist
economical
economize
economics
economy
economic
28
These ________________ were not satisfied with the working conditions.
self-employed
employer
employment
employees
29
There is an intense ____________ between the three leading soap manufacturers.
competitor
competitive
competition
compete
30
We will need a reference from your ______________.
employer
self-employed
employees
employment
31
‘Oka’ used to be the most _________________ car in Europe.
economics
economical
economize
economic
economist
economy
32
Economists study our everyday lives ___________ order to understand the whole economic system.
at
in
for
of
with
to
into
on
33
The factory is modern and highly _________.
efficiency
efficiently
efficient
34
The study of economics will help you deal ___________ these questions.
for
into
of
in
at
to
with
on
35
He works for a company that ______________ car parts.
manufacturing
manufactured
manufacturer
manufactures
36
She always looks very _____________ in her smart suits.
professionalism
professional
profession
professionally
37
The franchisee is provided ___________ a total package for marketing the product.
of
on
to
for
with
in
at
into
38
He is solely responsible ___________ the success of the business.
on
to
for
with
at
into
in
of
39
Central planners can take ___________ account social costs.
for
in
at
of
into
to
with
on
40
The people in that town live very _________________ .
economists
economize
economics
economical
economy
economically

7 лет назад

Предмет: Русский язык, автор: alinavalitiva

Срочно! Не менее 80 слов, прошу (из г.д.з. не брать, проверяют)

7 лет назад