
中1数学 平面図形 おうぎ形の面積、中心角、弧の長さ
Authored by Kodai Tsuruoka
Mathematics
7th Grade
Used 15+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
左の図のおうぎ形は同じ半径の円の面積の何倍ですか?
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
半径3cm、中心角120°のおうぎ形の弧の長さを求めなさい。
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
左の図において中心角を求めなさい。
ヒント:24 → 3
45°
90°
30°
50°
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
左の図のおうぎ形の面積を求めなさい。
ヒント 24 → 3
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
135°
45°
140°
105°
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
48π
32π
24π
36π
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
160°
80°
40°
200°
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