Предмет: Геометрия, автор: vefobew216

ПОМОГИТЕ ПОЖАЛУЙСТА!!!

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Автор ответа: kapusta4324

1

Радиусами окружности исходный треугольник АВС делится на 3 равнобедренных треугольника.
В трегольнике СОВ острые углы равны по 15 градусов, поэтому
угол СОВ равен 180-30=150 градусов.
Угол СОА равен 90 градусов по условию задачи.
Отсюда
угол АОВ равен 360 -90-150=120 градусов.
Расстояние от О до АВ равно 6 см.
Этот отрезок делит треугольник АОВ на два прямоугольных треугольника,острый угол ОАВ равен 30 градусов.
Радиус ОА в этом треугольнике является гипотенузой и вдвое больше катета, противолежащего углу 30 градусов.
Радиус окружности равен
6*2=12 см

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Complete the sentences with the correct forms of the words in capital letters.
(6 points)
The criminals got a suitable
punishment
. PUNISH
1
Driving without a seatbelt is __________ , you can be fined for it. LEGAL
2
The __________ of being arrested is enough to discourage many people from committing crimes. HUMILIATE
3
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4
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5
What kind of __________ did they commit? OFFEND
6
The police took a __________ from the witness. STATE
2
Complete the missing words. The first letter of each word is given.
(7 points)
The police were wearing
u
niforms
, that’s how we knew they were police officers.
1
A policeman put the
h
__________ on the prisoner so that he wouldn’t attack anyone.
2
He’s under
h
__________
a
__________ – he isn’t in prison, but he can’t leave his home.
3
When the judge walked into
c
__________ everyone stood up and stopped talking.
4
They had to do fifty hours of
c
__________ service instead of going to jail.
5
The
s
__________ guard tried to catch the robbers but they escaped. The police caught them later because they were
s
__________ – driving too fast in the city centre!
3
Complete the missing words. The lines show you how many letters to use.
(3 points)
What
crimes do young people commit at school?• Teens often damage or destroy property so
v
a
n

d
a l
i

s
m is often a problem.• Many crimes are related to anti-social
1
_ e _ a v _ _ _ _,for example dropping
2
_ i t _ _ _ or using bad language in public. • Some young people
3
_ _ e a _ money or things from other students. • Sometimes students can be really horrible to each other and
4
_ _ l _ y _ _ _ can occur. • Some students also complain about
5
_ a c _ _ _ abuse saying that some of their schoolmates are not tolerant of their skin colour. In the worst cases, the school has to involve the police but
6
_ _ n _ _ h _ _ n _ is usually given by the school.
Crime and young people report
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The policeman _______________ (stop) the girl after she _______________ (take) a jumper without paying.
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Where _______________ (you/going) when we _______________ (meet) last night?
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He _______________ (go) to prison for two years and _______________ (not/commit) any crimes afterwards.
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The robber _______________ (give) the cashier a note while she _______________ (count) the money.
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I _______________ (still/think about) the problem when my father _______________ (suggest) a solution.
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1
_____________ (go) out for dinner with some friends. While we
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3
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5
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6
_____________ (go) back to the hotel and
7
_____________ (check) my possessions. Luckily, the man
8
_____________ (not/go) into my room.
6
Choose all the answers that complete the text in a correct way.
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1
watched / would watch / used to watch
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2
got / used to get / would get
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3
didn’t let / wouldn’t let / didn’t use to let
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4
wanted / would want / used to want
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5
changed / would change / used to change
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