圓周長78.5公分的圓,直徑大約是幾公分?

翰林國小數學 - 6上CH5 - 圓周長與扇形弧長

Quiz
•
Mathematics
•
6th Grade
•
Hard
吳 家瑋
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
約30公分
約25公分
約20公分
約15公分
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
甲圓的直徑是乙圓直徑的3倍,已知乙圓的圓周長是27公分,甲圓的圓周長是多少公分?
72公分
54公分
81公分
36公分
3.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
在同一個圓內,下列哪一個扇形的弧長最長?
擁有相同圓心角的扇形
擁有最小圓心角的扇形
擁有最小面積的扇形
擁有最大圓心角的扇形
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
圓周長大約是直徑的幾倍?
約4.0倍
約2.5倍
約3.0倍
約3.14倍
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
一個圓的直徑是R公分,下列哪一個式子可以表示此圓的圓周長?
C = R²π
C = 2R
C = 2πR
C = πR
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
甲輪胎直徑是64公分,乙輪胎直徑是16公分,甲輪胎的圓周長大約是乙輪胎圓周長的幾倍?
4
2
8
6
7.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
甲圓的直徑是乙圓的3倍,甲圓的圓周長是乙圓的幾倍?
2倍
3倍
4倍
1.5倍
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