Предмет: Математика, автор: chintalov

В каком случае точки М и Н симметричны друг другу относительно прямой а?

Ответы

Автор ответа: sysoevadasha

Точки M и N симметричны друг другу относительно прямой a, в том случае, если , проведя через данную прямую перпендикуляр из точки М, он пройдет через точку N

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EXAMPLE:
A: What do you feel about pets?
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Complete the sentences. Use
the present simple or present
continuous form of the verbs.
I’m Christy Bell, and I’m in Year 11 at a
school in Manchester. This is my big
GCSE exam year, so I 1 don’t have
(not have) as much free time as I
did before. When I 2
(not do) my homework or studying
for tests, I try to see my friends.
Saturday night is really the only
time when everyone’s free, because
most of my friends 3
(work) on Saturdays. I have a job in
a home and garden centre, but now
it 4 (get) harder to fi nd
enough time to do that and all of
my school work too. I 5
(need) the money, though, because
I don’t get any pocket money from
my mum. I 6 (do) some
babysitting, which is good because
I usually 7 (get) my
school work done at the same time,
and I get paid for it!
Most of the boys in my class seem
to spend a lot of their free time on
computers. More and more of them
8 (get) computer games,
or doing online gaming, but I don’t
like them much. And these days
people 9 (use) instant
messaging to talk to friends, but I
10 (prefer) texting my
friends on my mobile – I hate sitting
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