
圓形面積與周長
Authored by Chih Kuo
Mathematics
6th Grade
Used 1+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
以下哪一個圓形的面積最大?
A. 半徑是10 m的半圓
B. 半徑是10 m的圓
C. 直徑是10 m的半圓
D. 直徑是10 m的圓
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
大圓和小圓的半徑分別是6 cm和2 cm,大圓的面積是小圓的多少倍?
A. 3倍
B. 6倍
C. 9倍
D. 12倍
3.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
圓周的長度是直徑的 (a) 倍多些。(以整數作答)
4.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
圓形地毯的周界是25.12 m,它的直徑是 (a) 。
5.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
用邊長20 cm的正方形紙剪出最大的圓,該圓的圓周是 (a) 。
6.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
晴時用一條長80 cm的鐵線製作半徑3 cm的鐵圈,最多可製成 (a) 個鐵圈。(以整數作答)
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
以下哪一項是正確的?
A. 圓周:直徑 = π
B. 圓周與半徑無關
C. 圓周:半徑 = π
D. 圓周:半徑 = 2π
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