Độ dài đường tròn, cung tròn.
Quiz
•
Mathematics
•
9th Grade
•
Medium
Thu Nguyễn
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Câu 1. Cho đường tròn (O), bán kính R = 4cm. Tính chu vi của đường tròn ?
A. cm
B. cm
C. cm
D. Đáp án khác
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 2. Cho đường tròn (O), bán kính R . Tính chu vi của đường tròn ?
A.
B.
C.
D.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Câu 3. Đường tròn(O) có chu vi là 25,12 cm. Tính bán kính R của đường tròn đó?
A.
B.
C.
D.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 4. Độ dài cung tròn bán kính R là:
A.
B.
C.
D.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Câu 5. Độ dài cung của đường tròn bán kính 10 cm là:
A.
B.
C.
D. Đáp án khác
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Câu 6. Độ dài cung của đường tròn bán kính 3 dm là:
A.
B.
C.
D.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Câu 7. Nếu độ dài của cung là 35,6 cm thì bán kính của đường tròn đó là:
A.
B.
C.
D.
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