Предмет: Геометрия, автор: mdasa21

Допоможіть, будь ласка!!
Дано куб ABCDA1 B1 C1 D1 (рис. 34.10). Назвіть грані куба, до яких перпендикулярна пряма: 1) AA1 ; 2) AD​

Приложения:

Ответы

Автор ответа: zmeura1204
1

Ответ:

1) АА1 перпендикулярно (А1В1С1); АА1 перпендикулярно (АВС)

2) AD перпендикулярно (DD1C1); AD перпендикулярно (АА1В1)

mdasa21: Спасибо большое!)
Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Математика, автор: d2828027
611.решите уравнение:1)2/9х=5/12;2)4/15у=2/5;3)3/5х=6;4),7/8у=14;5)3/7х=1⅘;6)9/10у=4½​
11 месяцев назад
Предмет: Английский язык, автор: tomirisserikpaeva
Пожалуйста помогите с заданием в онлайн мектеп, дам 50 баллов!
Read the paragraph from the text and click the correct option.
Heroic dogs who saved humans lives


Humans and dogs have been friends since prehistoric times. Dogs are found one of the most devoted animals in the world. Their devotion has become a topic for films like Hachiko. Every day dogs save people's lives. There are police dogs, firefighters rescue dogs, guide dogs for disabled. All of them save thousands of lives and deserve honor.
A Bull Terrier Peggy became the mascot of the 2nd Battalion Gordon Highlanders after soldiers discovered her as an abandoned puppy in Malaya. The soldiers were taken prisoner but kept Peggy and shared their food with her. During their imprisonment, in the hopeless situation, just struggling to survive, Peggy's presence boosted their morale.
Upon release, she lived at the battalion's barracks in Aberdeen until dying in 1947. Peggy was described as a "loyal companion" to the soldiers as they fought against Japanese forces. Peggy bravely fought against enemies with her friends. When Gordon Highlanders were sent to Thailand to carry out hard physical work, the dog played an integral role in lifting the soldiers’ spirits When Peggy saw that Gordon Highlanders were attacked, she rushed to defend them and got a lot of scars.
The soldiers refused to travel back to Scotland unless Peggy was allowed to join them on the journey home. Peggy was nominated for the PDSA award by Stewart Mitchell, a volunteer historian at the Gordon Highlanders Museum in Aberdeen, Scotland.
During World War II, dogs were detecting mines, medical aid dogs were carrying the wounded from the battlefield. Many of the dogs carried first aid kits in packs on their backs for the wounded. Guide dogs help the disabled every day.
In 1925, dogs showed us that humanity could rely on them. It was also known as the Great Race of Mercy and The Serum Run. A small Alaskan town of Nome was in the throes of a deadly diphtheria epidemic. It faced difficulties because there was no treatment as it was cut off in the depths of severe Alaskan winter. To save the town's inhabitants, 20 teams of sled dogs transported a vital anti-toxin over 674 miles (1,085km) of ice and snow, in just six days, through the most brutal winter conditions.
Siberian huskies named Balto and Togo led the sleds to transport the serum from Nenana to Nome. By 31 January 1925, they had travelled 170 miles (274km) from Nome to meet the oncoming serum delivery. At one point during the trip, Seppala the dogs’ owner was unable to see through the storm, but Togo led the team in a straight line through the dark to safety. Working as a team, Seppala's dogs found their way struggling with severe Alaskan winter. The dogs team saved 10,000 lives. The story made Siberian Huskies famous. Balto is immortalised in a bronze statue in New York's Central Park.
All dogs' stories tell us about their devotion and love for humans. Dogs are real human friends. We can always rely on them.
11 месяцев назад
Предмет: Другие предметы, автор: tomiris123423
Вязание спицами разных изделий.
Урок 1
Выбери правила организации рабочего
места при вязании спицами.
Верных ответов: 3
Рабочее кресло должно быть удобным,
мягким, гибким, чтобы качалось и не
утомляло, сидеть надо удобно полулежа.
На рабочем месте должен быть порядок.
Корпус нужно держать прямо, слегка
наклонив голову к работе.
Рабочее место для вязания необходимо
оборудовать у окна или в другом удобном
месте светлой части комнаты
11 месяцев назад
Предмет: Литература, автор: 19809090
Как написать описание картины И.И.Левитана 《Золотая осень》.
6 лет назад
Предмет: Биология, автор: Аноним
верно ли утверждение Обоснуйте его правильность неправильность бактерии обитающие в почве является важным фактором плодородия почв ​
6 лет назад