Предмет: Математика, автор: egor343778

длина прямоугольного параллелепипеда равна 15 см а ширина составляет 2/3 длины,а высота на 3см больше ширины. Найдите объем,площадь полной поверхности и длину всех ребер параллепипеда .

Ответы

Автор ответа: svetlanavaslarionova

Ответ:

Найдем ширину: 15•2/3=10,

высота: 10+3=13

Объем: 15•10•13=1950см³

Если а-длина, b -ширина, с - высота,то длина всех ребер будет 4(а+ b +c)=4(13+15+10)=4•38=172cm

Площадь полной поверхности: 2(ab+bc+ac)=2(15•10+10•13+15•13)=2(150+130+195)=950cm²

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Окружающий мир, автор: виолетта0129

как нельзя разводить костер в лесу

1 год назад

Предмет: Русский язык, автор: Ангелочик2354

Помагите пожалуйста "1) образованные с помощью приставки,2) с помощью суффикса,3) с помощью приставки и суффикса,4) путём сложных основ. КРАСНОЩЕКИЙ, СОЛОВУШКА, ПОДРОСТОК,ЛЕСНИК, ПРИГОРОД, ЛЕСОПОЛОСА, ПОДОРОЖНИК,ПТИЦЕФЕРМА, ПОДПОЛ.

1 год назад

Предмет: Українська мова, автор: MaksTaZ

Диалог на тему "Хто для тебе э ліпшим другом"

1 год назад

Предмет: Английский язык, автор: albatrossd

Помогите с тестом, пожалуйста!

Выберите правильный вариант.

1. When I... home the program ... .
A) had got; had already started B) got; already started C) got; had already started

2. They invited her to the show because she ... a bestseller book.
A) wrote В) had written C) was written

3. Mother asked who ... the vase.
A) broken В) had broken C) broke

4. They ... late for classes because they had missed the train.
A) were В) had been C) was

5. Nick looked happy because his favorite team ... the match.
A) had won B) had winned C) won

6. The boss had worked for the company for 30 years before he ... .
A) had retired B) retired C) was retired

7) I wanted to visit England because I ... a lot about it.
A) had heard B) heard C) was heard

8. ft was my first driving lesson and I was very nervous because I ... before.
A) never drove B)has never driven C)had never driven

9. When I arrived the house was very quiet. Everyone ... to bed.
A) has gone B) had gone C) went

10. By the end of the show I ... asleep.
A) fell В) fall C)had fallen

11. The secretary was sure that she ... the letter three days ago.
A) posted В) had posted C) posts

12. John said he ... three miles.
A) had walked B) had walk C) walked

13. By the time I ... the party ... .
A) had arrived; had already finished B) arrived; already finished С) amved; had already finished

14. He went to the kitchen and ...a sandwich.
A) had made B) maked C)made

15. After she ... the leg she called an ambulance.
A) broke В) had broken C) was broken

16. He ... two weeks in Scotland a year ago.
A) has spent B) spent C) had spent

17. He .......tell me that he .. ..a message from Ann.
A) didn't; had received B) hadn't; received C)hasn't; received

18. When she ... .all her money, she ... .home.
A) spent; had gone B) has spend; went C)had spent; went

19. He opened his eyes and tried to remember what ...
A) happen В) had happened C) happened

20. She ... very hungry because she .... anything since the morning.
A) was ; had not eaten B) had been; didn't eat C) has been; hadn't eaten

7 лет назад

Предмет: Алгебра, автор: nina6128

помогите решить срочно нужно

7 лет назад