Предмет: Геометрия, автор: irony666n

Построить сечение призмы ABCDA1B1C1D1 плоскостью, A1,M,N, если M – середина ребра BB1, N – середина DD1​


Simba2017: какая призма?
irony666n: не указано
LFP: призма четырехугольная точно... остальное без разницы)

Ответы

Автор ответа: LFP
1

Объяснение:

не важно какая призма - прямая или наклонная,

сечением всегда будет четырехугольник А1MCN

(это легко доказывается...)

Приложения:
Похожие вопросы
Предмет: Английский язык, автор: alykkk
B. Choose the proper answer 1. She usually English at home a) is speaking b) speaks e) has spoken d) spoke t 2. She ... her parents yesterday a) has visited b) visits e) is visiting d) visited 3. Look! He... the piano. a) is playing b) plays e) played d) has played 4. My Granny is the... cook in the world! a) good b) goodest c) best d) better 5. Peter wondered if Tom... to London the following year. a) will go b) would go c) went d) is going C. Choose the from his bad cold and can go out tomorrow. proper answer 1. He has house face the river. A. suffered B. worried C. recovered 2. They have a big house. Some windows of A. themselves their C. their 3. My cat is black. A. his B. my C. its paws are white. 4. Where is Helen? I want to speak to A. her B. you C. myself 2. My Granny grew beautiful flowers. They are A. her B. hers C. herselves 3. My elder brother likes tea nor the coffee. A. neither B. either C. or lick your fingers. 4. You A. should B. should to C. shouldn't 5. How much is it? A. Here you are. B. Three pounds, please. C. I'd like to have a look at this shirt. 6. A person who sells pork and beef is a A. greengrocer B. grocer C. butcher makes laws about the policy of the country, taxes and many other things. 7. A. The Queen B. The House of Commons C. The House of Lords 8. The book about Tom Sawyer was written by A. Jack London B. William Shakespeare C. Mark Twain L Rewrite sentences into reported speech. J. Nina said: "I bought a new Jacket yesterday." K. They said: "We are going to keep to a diet, Sam." L. Frank said: «< It's hard to get tickets for the match». M. "Have you bought any food?" said Dad to his son. N. "Where are you from?" she asked. O. The teacher said to her pupils: «Don't open your books!». P. David said to his friend, "Will you join me?" Q. The weatherman said, "The weather will be warmer in two days" J. Rewrite the sentences in the Passive Voice. 1) We cooked a cake yesterday. 2) They are drawing the pictures. 3) We plant a lot of trees every month. 4) They will buy this apartment next week. 5) The butcher sells meat, beef, pork. 6) He will wash his car in 2 days