Предмет: Математика, автор: viktoriabaranovska38

Знайдіть площу круга, діаметр якого дорівнює 6см

Ответы

Автор ответа: NNNLLL54

Ответ:

Площадь круга равна S = πR² , R - радиус круга .

Диаметр D = 6 см ⇒ R = 3 см .

S = π · 3² = 9π (см²)

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Vocabulary
Choose the correct answer.
1. Donna spent all day on the beach and got a ________.
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resort
scar
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2. Julian put on a shirt and tie to make a good ________.
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required
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6. Eric ________ into an old classmate the other day.
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bumped
hugged
greeted
Complete the sentences with the words in the box.
*
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passport passion hire bucket tasteless relaxing owe
1
2
3
4
5
6
7
1
2
3
4
5
6
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Communication
Choose the correct answer to complete the dialogues.
1. A: I have an idea. Let’s try volcano surfing.
B: __________
*
Don’t talk nonsense!
That’s disgusting!
2. A: Why don’t you want to spend time with Gareth?
B: __________
*
He gives me a hard time.
He has to make time.
3. A: __________
B: Yes, it was really embarrassing.
*
Did you get uncomfortable?
Did you make a fool of yourself?
4. A: I’m going to try bungee jumping next week.
B: __________
*
You’re out of your mind.
You take a break.
5. A: It’s going to take me a while to get ready.
B: __________ I’m not in a hurry.
*
At all times.
Take your time.
Grammar
Choose the correct answer.
1. The librarian _______ us to stop talking.
*
tell
said
told
2. The police officer _______ us to stop the car.
*
order
ordered
said
3. Mandy _______ me if I wanted to go with her.
*
ordered
told
asked
4. Barry _______ Paul not to be late.
*
told
says
said
5. Joan asked me _______ I was making noise.
*
what
why
because
6. He _______ that he worked as a teacher.
*
told
ordered
said
7. Our teacher asked us if we _______ the question.
*
understood
understand
has understood
8. I told my mother _______ early in the morning.
*
wake me up
woke me up
to wake me up
9. Kathy _______ what they were going to have for lunch.
*
told
said to
asked
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to not be
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what he was doing
what was he doing
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told
said
asks
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to bring
bring
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asked
told
said to
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whether
that
to know if
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he lost
had he lost
he had lost
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stop
that stop
to stop
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who
why
if
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said
told to
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wanted
asked
said
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the previous
the following
last
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*
to not wait
not to wait
not wait
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*
how
whether
what
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*
the next day
the day before
yesterday
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*
where
whether
if
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*
to swim
not to swim
to not swim
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*
why
if
when
30. We asked our parents _______ us on a safari and they said yes!
*
take
to not take
to take
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Read the diary and choose T for True or F for False.
*
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