上圖是一個半徑4公分的圓，塗色區的面積是多少平方公分?
扇形面積(初)
Quiz
•
Mathematics
•
6th Grade
•
Easy
Used 1+ times
FREE Resource
4 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
12.56平方公分
50.24平方公分
1256平方公分
5024平方公分
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
上圖是一個半徑3公分的圓，塗色區的面積是?
9.42平方公尺
9.42平方公分
28.26平方公分
28.26平方公尺
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
上圖是一個半徑9公分的圓，塗色區的面積是?
84.78平方公分
254.34平方公分
8478平方公分
25.434平方公分
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
上圖是一個半徑18公分的圓，塗色區的面積是?
54平方公分
1017.36平方公分
169.56平方公尺
169.56平方公分
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