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翰林國小數學 - 6上CH5 - 圓周長與扇形弧長

Authored by 吳 家瑋

Mathematics

6th Grade

Used 2+ times

翰林國小數學 - 6上CH5 - 圓周長與扇形弧長
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 2 pts

圓周長78.5公分的圓,直徑大約是幾公分?

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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