
Ai nhanh hơn nào ?

Quiz
•
Mathematics
•
Professional Development
•
Hard
T13GA -ff
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Đâu là công thức tính chu vi hình tròn?
A. r x r x 3,14
B. r x 2 x3,14
C. d x 2 x 1,14
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Muốn tính diện tich hình tròn ta làm thế nào?
A. r x r x 3,14
B. r x 2 x3,14
C. d x 2 x 1,14
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Tính diện tích hình tròn có bán kính 2 cm?
A. 1,256 cm2
B. 12, 56 cm2
C. 125,6cm2
D. 1256cm2
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Tính chu vi hình tròn có bán kính 2 cm?
A. 1,256 cm
B. 12, 56 cm
C. 125,6cm
D. 1256cm
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Tính diện tích hình tròn có bán kính 10 cm?
A. 314 cm2
B. 3,14 cm2
C. 31,4 cm2
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Hình tròn có chu vi 6,28cm. Vậy bán kính hình tròn là:
A. 10cm
B. 5 cm
C. 1cm
D. 3,14cm
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Đường kính hình tròn là 2 cm. Vậy diện tích hình tròn là:
A. 4 cm2
B. 12,56 cm2
C. 31,4 cm2
D. 3,14cm2
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