Предмет: Геометрия, автор: Kevich3

З точки М до площини а проведено перпендикуляр МН та похилi MA i MB, MB=6 см. AM=5 см. AH=4 см. Знайдіть НВ
Пж срочно

Приложения:

Ответы

Автор ответа: filuksistersp735lh

1

Ответ:

знайдемо МН в трикутнику АНМ (∠АНМ=90°)

МН²=АМ²-АН²=5²-4²=9

МН=3см

знайдемо НВ в трикутнику ВНМ (∠МНВ=90°)

НВ²=МВ²-МН²=6²-3²=36-9=27

НВ=√27

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Другие предметы, автор: leravvvvvv

кто из трёх святителей помогал царю петру 1 создавать российский флот

1 год назад

Предмет: Русский язык, автор: Аноним

напишите пж тест по фразеологизмам. пжжжжжж

1 год назад

Предмет: Английский язык, автор: kupcova91

I. Use the correct tense form of the verb in bracket:
1. While the children [to play] football, the rain began to fall.
2. The boy already [to do] his homework and now he [to watch] TV.
3. She [to get up] early tomorrow morning.
4. You [to go out] last night, Tom ? – Yes, I [to go] to the cinema.
5. Tom usually [to go] to the village on weekends.

II. Choose the right article:
1. Where is … money? –it’s on … table.
2. After … supper he usually goes for … walk.
3. I can’t eat … apple. It’s very sour, I like … sweet apples.
4. … sun was not up yet, but … stars had disappeared.
5. Will you be at … home tomorrow?

III. Circle the suitable preposition:
1. Mary is fond [of, for, to] animals.
2. He came [at, in, to] London [in, on, at] 13 June.
3. Who are you waiting [of, to, for] ?
4. Listen [to, for, about] my advice.
5. They waited [on, at, for] the station for a long time.

IV. Put the word into correct form-meaning:
1. It’s often ___ to learn the rules. [to help]
2. The trip was not ___ at all. [to excite]
3. Try to use your ____. [to imagine]
4. It’s a very ___ street. [to noise]
5. Vic sometimes Jokes at my____. [to appear]

V. Translate the words given in brackets:
1. Jane is [самая высокая] girl in our class.
2. I am sorry I didn’t study [усерднее].
3. He was so [взволнован] that he could hardly speak.
4. The house is not [легко] to keep clean.
5. He didn’t earn [много] money to rent a big flat.

VI. Put the words in the right order to make up a sentence:
1. job/much/i/like/very/don’t/my.
2. would/i/some/like/tea/more.
3. what/like/most/subject/of/you/all/did?
4. is/late/classes/for/she/often/her.
5. he/always/much/smoke/does/so?

1 год назад

Предмет: Русский язык, автор: Аноним

Подберите синонимичные фразеологизмы к сочетанию наверху блаженства

7 лет назад

Предмет: Математика, автор: кил20050

хелп плиз ном 66 в , г

7 лет назад