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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

中1数学 平面図形 おうぎ形の面積、中心角、弧の長さ
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10 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

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

Media Image

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

Media Image

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

Media Image

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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