圆心角与圆周角定理
Authored by J3L00 黄世基NG
Mathematics
9th Grade
Used 114+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如图所示，O是圆心。若∠BOC=60°，求m的值
30°
60°
120°
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如图所示，O是圆心。若∠AOC=70°，求m的值。
35°
70°
140°
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如图所示，O是圆心，AOB是直线。若∠CAO=70°，求∠CBO。
20°
35°
45°
条件不足，无法判断
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如图所示，O是圆心。∠BOC=72°，∠OCA=24°，求m的值。
24°
36°
48°
60°
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如图所示，O是圆心。若弧AB=弧CD，则∠AOB一定等于∠COD。
这句话是否正确？
是
不一定
否
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如图所示，O是圆心。若弧CB=弧DE，则∠BAC一定等于∠DOE。
这句话是否正确？
是
非
不一定
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如图所示，O是圆心。若弧DE=弧BC，∠DOE一定等于∠BAC的两倍。
是
非
不一定
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