Предмет: Геометрия, автор: JaneAyupova

в треугольнике абс угол а равен 50 градусов, угол с равен 40. какой это треугольник?

Ответы

Автор ответа: newsimka

0

сумма углов треугольника равна=180°
угол b=180-50-40=90°
Значит, треугольник прямоугольный.

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The World’s First Package Tours
When was the last time you had a holiday? And did you organize the trip or did you take a package tour? These days, most people choose a package tour, especially when they go abroad on holiday. They pay for their travel and accommodation in their own country, and they take traveler’s cheques which they exchange for local money when they arrive in the foreign country. But in the past it was very different. In fact, before the middle of the 19lh century, travelling for pleasure was rare and very expensive, and only a few rich people travelled abroad. The man who changed all this and brought in the age of mass tourism was Thomas Cook.
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Thomas Cook died in 1892 at the age of 84, and his son John Mason seven years later. But the age of the package tour and mass tourism was born.

ЗАДАНИЕ № 41 (- выберите один вариант ответа)
Thomas Cook lived in …
ВАРИАНТЫ ОТВЕТОВ:
A London B Loughborough C Leicester

ЗАДАНИЕ № 42 (- выберите один вариант ответа)
The first world's package trip was organized in …
ВАРИАНТЫ ОТВЕТОВ:
A 1845 B 1841 C 1851

ЗАДАНИЕ № 43 (- выберите один вариант ответа)
The first package tour for the general public was organized by Thomas Cook in …
ВАРИАНТЫ ОТВЕТОВ:
A 1845 B1841 C 1851

ЗАДАНИЕ № 44 (- выберите один вариант ответа)
The world's first travel magazine was published in …
ВАРИАНТЫ ОТВЕТОВ:
A 1845 B 1841 C 1851

ЗАДАНИЕ № 45 (- выберите один вариант ответа)
Tomas Cook organized the first package tour abroad in …
ВАРИАНТЫ ОТВЕТОВ:
A 1854 B 1863 C1855

ЗАДАНИЕ № 46 (- выберите один вариант ответа)
Tomas Cook organized tours only for members of his church
ВАРИАНТЫ ОТВЕТОВ:
A true B false Cnot said

ЗАДАНИЕ № 47 (- выберите один вариант ответа)
Tomas Cook opened his office in London in…
ВАРИАНТЫ ОТВЕТОВ:
A1855 B 1864 C 1865

ЗАДАНИЕ № 48 (- выберите один вариант ответа)
a circular ticket is …
ВАРИАНТЫ ОТВЕТОВ:
Aa single ticket B a return ticket COne-way ticket

ЗАДАНИЕ № 49 (- выберите один вариант ответа)
Cook issued the first traveler’s cheques in …
ВАРИАНТЫ ОТВЕТОВ:
A 1874 B 1892 C 1869

Vocabulary
ЗАДАНИЕ № 50 (- выберите один вариант ответа)
…develops tour packages.
ВАРИАНТЫ ОТВЕТОВ:
Atourism manager Btour guide Ctour operator

ЗАДАНИЕ № 51 (- выберите один вариант ответа)
Free-lancers …
ВАРИАНТЫ ОТВЕТОВ:
A work full time for a tourist company B work in high season
C work in off-season

ЗАДАНИЕ № 52 (- выберите один вариант ответа)
…entertains the guests
ВАРИАНТЫ ОТВЕТОВ:
Atravel agent B tour guide Canimator

ЗАДАНИЕ № 53 (- выберите один вариант ответа)
.… give free-lancers a permission to work.
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Areceipts B visas C licenses

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…shows tourists round a city.
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