Как вычисляется длина окружности, если известен радиус r?

Площадь круга

Quiz
•
Mathematics
•
11th Grade
•
Hard
Ne Skazhu
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
πr²
2πr
πd
r/2π
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как вычисляется площадь круга, если известен радиус r?
2πr
πr
πr/2
πr²
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Диаметр круга равен 10см. Чему равна длина окружности
10π см
5π см
20π см
π см
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Радиус круга равен 4см. Чему равна его площадь?
8π см²
4π см²
16π см²
32π см²
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какая формула используется для нахождения длины окружности по диаметру d
πd
πd²
πr²
2πd
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Если длина окружности равна 12π см, то каков ее радиус?
3см
24см
6см
12см
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Радиус круга равен 7см. Найдите длину окружности
49π см
14π см
28π см
7π см
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