
Cтереометрия задачи 3
Quiz
•
Mathematics
•
11th Grade
•
Practice Problem
•
Medium
Tatiana Klets
Used 4+ times
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ребра правильной четырехугольной призмы равны 1,4,4. Найти расстояние от вершины до центра основания призмы, не содержащего эту вершину.
3
9
6
4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В правильной шестиугольной призме ABCDEFA1B1C1D1E1F1 все ребра которой равны 1, найти расстояние АЕ1
2
1
3
4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В правильной треугольной призме АВС, все ребра которой равны 1,найти расстояние от точки А до прямой ВС1
5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Основание прямой призмы ABCDA1B1C1D1 ромб ABCD, в котором АВ=10, АС=6√7. Боковое ребро равно АА1=3√21. Найти расстояние от вершины В до прямой АС1
8
6
4
10
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В правильной шестиугольной пирамиде SABCDEF, стороны основания которой равны 1, а боковые ребра равны 2,найдите расстояние от точки С до прямой SF
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ребро AD пирамиды DABC перпендикулярно плоскости основания АВС. Найти расстояние от вершины А до плоскости, проходящей через середины ребер АВ, АС и AD, если AD=2√5, AB=AC=10,BC=4√5.
2
3
4
1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В кубе ABCDA1B1C1D1 точки E и F- середины ребер соответственно A1B1 и C1D1. Найти косинус угла между прямыми АЕ и ВF.
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