
ОГЭ. Математика. Окружность и круг
Authored by Юрий Никонов
Mathematics
9th Grade
Used 58+ times

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16 questions
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1.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Найдите площадь квадрата, описанного вокруг окружности радиуса 7.
2.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Радиус окружности, описанной около квадрата, равен 16 . Найдите длину стороны этого квадрата.
3.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Радиус окружности, описанной около квадрата, равен . Найдите радиус окружности, вписанной в этот квадрат.
4.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Окружность с центром в точке O описана около равнобедренного треугольника ABC, в котором AB = BC и ∠ABC = 177°. Найдите угол BOC. Ответ дайте в градусах.
5.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Центральный угол AOB опирается на хорду AB длиной 6. При этом угол OAB равен 60°. Найдите радиус окружности.
6.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
В окружности с центром в точке О проведены диаметры AD и BC, угол OCD равен 30°. Найдите величину угла OAB .
7.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Найдите ∠DEF, если градусные меры дуг DE и EF равны 150° и 68° соответственно.
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