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Площа рівнобічної трапеції, описаної навколо кола, дорівнює 8 〖см〗^2. Визначте периметр трапеції, якщо кут при її основі дорівнює 30°.
Ответы 1
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Доброго вечора.
Відповідь: 16 см.
Пояснення:
розв'язання завдання додаю
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Автор:
ziontdbc - 1 год назад
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3
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me back to schooll
Hello to you all Well I om so happy because, guess what
are thinking, but well.
was happy this morning to take the bus with my big brother John. Oh yes let me start from the
I'm pleased to see all my friends again and holidays can't last foreverite
I am back or school. Yes I knew what you
beginning. My name is Alison and I'm 12 years old and John is 15. Ive also got a younger brother Steve
who is 8 years old. He goes to a primary school in Paignton, and my older brother and I go to a
grammar school in Torquay, in the south west of England. My mother, Kate who is 46 is a doctor, and
my father, Michael who is 47, is a chef in a restaurant by the sea. They are very nice, often funny,
they sometimes get angry when we do stupid things, but they are really ok. We've got two cats
Fluffy and Sweety and one dog called Star. We live in a big house near the sea with a big garden,
where our pets can play. I can speak a little French and Spanish, I can also play the piano and the
guitar, I'm quite musical, whereas John is very sporty, he can play all sorts of team sports like rugby
and football, he can swim in the sea and he can surfl Steve can surf tooll. I like fruit, hamburgers,
pizzas and chips, I love chocolate ice cream, I know I shouldn't. I enjoy watching series on TV,
reading books, going to the cinema and meeting my friends I am quite cheerful, very polite and
hardworking, I am sometimes grumpy and I can be shy with people I don't know such as Mrs Langsta
the new head teacher I met this morning in my school. I've got my new time table and I will be
working from Monday to Friday starting at 9.00 am and finishing at 4.00 pm. As for the school
subjects, they are still the same: English, French, maths, history, religious education, geograph
drama, PE, music, computing....... Well I hope this will be a good year for me and for you tooll
by poll
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Предмет:
Английский язык -
Автор:
delacruz - 1 год назад
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Ответов:
1 -
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Допустим у нас есть 2 элемента: A и B. Из них можно составить комбинацию с максимальным количеством каждого элемента - 3. Но при этом они должны быть в одном порядке. Выглдеть это будет следующим образом:
AB
ABB
ABBB
AAB
AABB
AABBB
AAAB
AAABB
AAABBB
Итого 9 комбинций.
Вопрос такой: как называется такой вид комбинаций и по какой формуле он высчитывается?
Допустим если кол-во элементов 4, а максимальное кол-во каждого элемента 13?
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Предмет:
Математика -
Автор:
brady - 1 год назад
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Ответов:
1 -
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