Предмет: Математика, автор: alexfoxovich

Посчитайте сумму площадей всех граней куба,если сумма длин всех его ребер = 144 см.

Ответы

Автор ответа: Osaly1

Всего 12 граней, следовательно длина одной равна 144/12=10
12*12=144 (площадь одной грани, а граней всего 6)
144*6=864

Похожие вопросы

Предмет: Английский язык, автор: 00funcnyaa00

ТЕСТ ПО АНГЛИЙСКОМУ ЯЗЫКУ 9 КЛАСС.
№1. Выбери правильный ответ.

1. The play _______ at 8:00. A starts/ B is starting
2. He ______ never______ abroad. A has travelled/ B has been travelling
3. We ______ for Moscow this evening. A are leaving/ B leave
4. She ______ always ______. A complains/ B is complaining
5. I ______ she is a lovely girl. A am thinking/ B think
6. I ______ about moving to the capital. A am thinking/ B think
7. He is sad because he ______ his exam. A has failed/ B have failed
8. She is happy because she ______ to her favourite CD all day. A has listened/ B has been listening
9. Liz ______ a film yesterday. A watched/ B has watched
10. The girl ______ lives next door is my cousin. A who/ B which
11. The shop ______ has just opened in Wendover Street is lovely. A who/ B which
12. That was the year ______ she finished school. A when/ B where
13. I ______ to come to your party. A would love/ B love
14. I ______ you to come. A will/ B want
15. He ______ speak English very well. A can/ B want
16. Tim ______ a book and his brother was listening to music. A has been reading/ B was reading
17. I think she ______ her mind. A will change/ B is changing
18. Last year was by far ______ the company has ever had. A better/ B the best
19. Tea ______ by Mary. A had been made/ B had made
20. If I ______ a good voice, I would become a singer. A have/ B had
21. He said he ______ always remember me. A would/ B will
22. She said she ______ see me. A can’t/ B couldn’t
23. We have ______time left. We must hurry up. A little/ B a little
24. Why do you always blame me ______ something goes wrong? A whenever/ B wherever
№2. Прочтите текст и отметьте предложения Верно (T), Неверно (F) или Не сказал (DS).

The word kremlin means fortress in Russian. The most famous and well-known is the Moscow Kremlin. It is a large, walled area in the heart of Moscow. The Kremlin is built next to the Moskva River on one side and red Square on the other. Inside, there are beautiful palaces, churches and cathedrals, as well as various other attractive state buildings, tree-lined squares and peaceful gardens. The wall around the Moscow Kremlin is 2, 235 meters long and five to nineteen meters thick. There are twenty towers that look out over the city in every direction. Spasskaya Tower is 71 m tall and is the main tower that looks out over Red Square.
The Moscow Kremlin and Red Square were designated a UNESCO World Heritage site in 1990. This is not surprising when you discover how many incredibly beautiful churches and palaces there are. For example, in Cathedral Square there are three magnificent cathedrals from the late 15th and early 16th centuries. The Cathedral of the Assumption is the oldest. It is made of white stone and has five golden domes. Many Orthodox patriarchs are buried there. Across the square is the Cathedral of the Annunciation, which also has golden roofs and domes. Inside there are some early 15th-century icons by Theophanes and Andrei Rublyov. Then, there is the Cathedral of St Michael the Archangel where the princes of Moscow and the tsars of Russia are buried. Next to the square is the white bell tower of Ivan III and at the bottom is the huge Tsar Bell which was made in 1733-35 but has never been rung. Then close by is the Tsar Cannon which dates from 1586 and stands next to the mid-17th-century Cathedral of the Twelve Apostles and the Patriarchal Palace.
25. The word kremlin means town in Russian. _______
26. The Moscow Kremlin is a large, walled area in the heart of Moscow. _______
27. The wall around the Moscow Kremlin is 2, 235 meters long and six to nineteen meters thick. _______
28. There are beautiful towers on one side of the Moskva River. _______
29. The Moscow Kremlin and Red Square were designated a UNESCO World Heritage site. _______
30. The huge Tsar Bell which was made in 1733-35 but has once rung. _______

6 лет назад

Предмет: Химия, автор: Elydenere

Укажіть кількість речовини срібла, що утвориться під час взаємодії 18г глюкози з аміачним розчином аргентум (І) оксиду, взятим у надлишку.

6 лет назад

Предмет: Алгебра, автор: belousovegor396

решите систему уравнения с двумя переменными методом подставки {5х +у=15,
{3х+4у=26

6 лет назад

Предмет: География, автор: kam9i

ПОМОГИТЕ! Сходства и различия внутренних вод Южной Америки и Африки:) 50 баллов даю)

10 лет назад

Предмет: Математика, автор: lera20042002

Назовите число,противоположное данному:
а)12;
б)-15;
в)-1/2
г)0,001;
д)-2,5;
е)0;
ж)4/11
з)-7,77.

10 лет назад