Предмет: Математика, автор: koftiknastya

Построить сечение параллелепипеда ABCDA B C D1 плоскостью, проходящей через точки: М, лежащую на ребре C1D1 ; В1; N, лежащую на ребре AD.​

Ответы

Автор ответа: NNNLLL54
0

Ответ:

АВСDA₁B₁C₁D₁  - прямоугольный параллелепипед .

М ∈ C₁D₁  ,  N ∈ AD .  Провести сечение через точки M , N , B₁ .

B₁M ∩ A₁D₁ = F

FN ∩ A₁A₁ = E  ,  FN ∩ DD₁ = K

Точку E соединяем с точкой В₁  .

В₁E ∩ AB = P

MKNPВ₁ - искомое сечение .

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