圓形的周界
Authored by Kam Lai
Mathematics
9th - 12th Grade
Used 7+ times
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6 questions
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1.
DRAW QUESTION
30 sec • Ungraded
以不同顏色表示圖形周界的部分。
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
20cm的邊是大圓的 直徑 / 半徑？
直徑
半徑
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
20cm的邊是小圓的 直徑 / 半徑？
直徑
半徑
4.
DRAW QUESTION
1 min • 1 pt
以不同顏色畫表示圖形周界的部分。
Answer explanation
周界分成三部分
5.
DRAW QUESTION
2 mins • Ungraded
以π為3.14寫出計算圖形周界的算式
Answer explanation
留意兩個圓形的周界都是1/2個圓周
6.
DRAW QUESTION
2 mins • Ungraded
計算圖形的周界。
Answer explanation
周界分成兩部分，注意大圓周是1/2個，小圓周有2個1/2個圓周，即等於1個圓周
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