
ôn tập
Authored by Hoàng Cẩm
Mathematics
9th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A(1;2)
B(2;1)
C(-1;2)
D(-1;1/2)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Góc ở tâm chắn nửa đường tròn có số đo bao nhiêu?
180 độ
90 độ
360 độ
120 độ
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho tứ giác ABCD nội tiếp đường tròn, góc A bằng 70 độ, khi đó
Góc B bằng 110 độ
Góc C bằng 110 độ
Góc A bằng góc C
Góc B bằng góc D
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Biết hàm số y =ax bình ( a khác 0) đi qua điểm có tọa độ (1;-2), khi đó hệ số a=?
-2
2
-3
3
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
tứ giác nội tiếp đường tròn ( 11 kí tự)
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Trong hộp có 6 quả bóng trắng, 7 quả bóng màu xanh, 5 quả bóng đỏ. Bạn hà lấy ra ngẫu nhiên một quả bóng trong hộp
Tính xác suất để bạn hà lấy được quả bóng màu xanh
6/(6+7+5)
7/(6+7+5)
5/(6+7+5)
(6+7+5)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Một hình trụ có bán kính đáy là 2 cm, chiều cao 3 cm, thì diện tích xung quanh ?
6 pi ( cm vuông)
12 pi ( cm khối)
6 pi ( cm khối)
12 pi ( cm vuông)
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