hệ thức giữa cạnh và góc

Quiz
•
Mathematics
•
9th Grade
•
Hard
Thị Lê
Used 3+ times
FREE Resource
14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho hình vẽ, khẳng định nào sau đây là sai?
2.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
3.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Cho hình vẽ, độ dài đoạn DE là ..... cm (làm tròn đến chữ số thập phân thứ nhất)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
cả 3 đáp án đều đúng
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
0,8
1,2
3,1
0,6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khẳng định nào sau đây đúng? Cho hai góc phụ nhau thì:
sin góc này bằng cos góc kia
sin hai góc bằng nhau.
sin góc này bằng tan góc kia.
cos góc này bằng cot góc kia.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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