以圓心為頂點,兩條半徑為邊,所圍成的角叫作什麼?

南一國小數學5下_ch3-2

Quiz
•
Mathematics
•
5th Grade
•
Medium
數學 南一
Used 42+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
周角
平角
圓心角
直角
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一個圓形可以平均分割成5個圓心角為幾度的扇形?
60°
90°
120°
72°
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在同一個圓中,圓心角越大所形成的扇形就會如何?
越大
越小
一樣大
不一定
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將一個圓分成4個扇形,已知一個扇形的圓心角是平角,另外兩個扇形的圓心角皆為35°,剩下的扇形是多少度?
100°
110°
120°
130°
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一個周角可以畫分為幾個直角?
3
4
5
6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將一個圓剪下圓心角160°的扇形後,剩下的扇形部分圓心角是幾度?
360°
200°
160°
20°
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下圖塗色部分的圓心角是幾度?
30度
60度
120度
240度
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