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Параллельность плоскостей

Authored by Анна Лисицкая

Mathematics

10th Grade

Used 33+ times

Параллельность плоскостей
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7 questions

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1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

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Выберите пару параллельных плоскостей

ABCD

BA1D1C

BB1C1C

AB1C1D

A1B1C1D1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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 AA1BB1, αβ, ABB1A1  ...AA_1\parallel BB_1,\ \alpha\parallel\beta,\ ABB_1A_1\ -\ ...  

квадрат

прямоугольник

параллелограмм

ромб

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

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Найдите периметр сечения прямоугольного параллелепипеда плоскостью DAB1.

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

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 αβ, ABDC, AB=8,BC=3, \alpha\parallel\beta,\ AB\parallel DC,\ AB=8,BC=3,\    ABC=60°. AC=...\angle ABC=60\degree.\ AC=...  

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

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 αβ, AB=6, ACBD=O,\alpha\parallel\beta,\ AB=6,\ AC\cap BD=O,   AO:OC=3:4, DC=?AO:OC=3:4,\ DC=?  

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

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7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

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 A1B1C1ABC, DA1:AA1=3:4,A_1B_1C_1\parallel ABC,\ DA_1:AA_1=3:4,   SA1B1C1=27, SABC=?S_{A_1B_1C_1}=27,\ S_{ABC}=?  

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