Предмет: Геометрия, автор: makssokolenkov

Построить сечение параллелепипеда

Приложения:

Simba2017: а) построено уже на картинке

Ответы

Автор ответа: NNNLLL54
2

Ответ:

Пункт а) - чертёж уже есть.

Пункт б) :

1.   BK ∩ A1B1 = N

2.  BL ∩ B1C1 = M

3.  соединяем точки  М и N , прямая  MN  пройдёт через точку D1 .

4.  соединяем точки  К и D1  ,  L и D1 .

5.  получаем сечение BKD1L .

Приложения:

madinaa830: Здравствуйте, извините, что отвлекаю,но не могли бы вы мне помочь с алгеброй?
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