Предмет: Геометрия, автор: cgffiiiop

Найти сторону равностороннего треугольника, если радиус описанной около него окружности равен 14 см.

Ответы

Автор ответа: kpdon03

Ответ: 14√3

Объяснение:

R=a√3/3

a=3R/√3=14√3

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: АльфаОмега

Part III
Use of English
A Put the verbs in brackets into the Present Perfect or the Present Perfect Continuous.
0 I haven’t seen (not see) you for ages!
1 Don’t tell me you are too busy to give me a hand with the cooking. You ________________ (play) computer games for the last two hours.
2 We are very proud of our son. He ________________ (break) the school high jump record again.
3 I’m totally exhausted! I ________________ (clean) the house all day but I still ________________ (not finish) the bathroom.
4 I’m afraid you won’t be able to leave for home earlier today, Ms Brown. It’s 5 o’clock and you ________________ (write) only half of the proposal so far.
5 Diane Porter is a well-known applied linguist. Recently she ________________ (do) research on the effects of students’ age on second language learning.
B Underline the correct alternative in each sentence.
0 Do you ever talk to you/yourself?
1 No one can accuse them/themselves of something that they haven’t done.
2 If we try not to get angry with ourselves/each other so quickly, we will probably solve our problems more easily.
3 I think George should look at him/himself critically and go on a diet to lose some weight.
4 My daughters are going to be vain. They are only six years old and already spend most of their time looking at themselves/each other in the mirror.
  C Read the dialogue below and use one word to fit each space.
At the airport:
A Good evening. Could I see your passport , please?
B Here you are.
A Is this all your ______________ ?
B Yes, just this suitcase and this bag.
A That’s OK. Here is your ______________ card. Go to ______________ number two.
B Thank you.
D Match the words from two columns to form compound words.
0 passport         a) jams
1 ticket            b) jacket
2 overhead       c) locker
3 information d) control
4 traffic            e) collector
5 emergency     f) exit
6 life                g) desk
E Complete the sentences with the appropriate words. Use only one word in each gap.
0 The underground is a railway system in which electric trains travel mainly below the ground.
1 A _______________ is a boat or ship for transporting passengers and vehicles across an area of water.
2 We’ll be sitting in the second _______________ from the front of the train.
3 A _______________ is a person who is walking in a street.
4 If you don’t hurry up, we are going to _______________ our train.
5 My parents are Green Peace activists and they are involved in the campaign against air and water _______________.
6 Is this Marszalkowska Street or should I get _______________ at the next stop?

1 год назад

Предмет: Английский язык, автор: lider435

ёлка, носки, коньки, мяч, велосипед по английски

1 год назад

Предмет: Русский язык, автор: AliнO4KA

Что такое глагольное словосочетание?

1 год назад

Предмет: Химия, автор: RASSPUTIN

уравните плиз HNO3+Ba(OH)2-...

8 лет назад

Предмет: Математика, автор: Дамир20081

В северном Казакстане 600 озёр , в окрестностях Кокшетау в2 раза меньше. Только в 108 из них водится рыба. Сколько озёр в окрестностях Кокшетау,в которых рыба не водится? Реши задачу

8 лет назад