ОГЭ - Задание №16. Окружность, круг и их элементы
Quiz
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Easy
Ann Still
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16 questions
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1.
FILL IN THE BLANK QUESTION
3 mins • 10 pts
В угол C величиной 87° вписана окружность, которая касается сторон угла в точках A и B, точка O – центр окружности. Найдите угол AOB. Ответ дайте в градусах.
2.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Треугольник ABC вписан в окружность с центром в точке O. Точки O и C лежат в одной полуплоскости относительно прямой AB. Найдите
угол ACB, если угол AOB равен 64°. Ответ дайте в градусах.
26
32
38
24
36
3.
FILL IN THE BLANK QUESTION
2 mins • 10 pts
Отрезки AC и BD – диаметры окружности с центром O. Угол ACB равен 25°. Найдите угол AOD.
Ответ дайте в градусах.
4.
FILL IN THE BLANK QUESTION
2 mins • 10 pts
Радиус окружности, вписанной в прямоугольную трапецию, равен 38. Найдите высоту этой трапеции.
5.
FILL IN THE BLANK QUESTION
2 mins • 10 pts
Найдите площадь квадрата, описанного вокруг окружности радиуса 11.
6.
FILL IN THE BLANK QUESTION
2 mins • 10 pts
7.
FILL IN THE BLANK QUESTION
2 mins • 10 pts
Периметр треугольника равен 56, одна из сторон равна 19, а радиус вписанной в него окружности равен 5.
Найдите площадь этого треугольника.
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