圆心角与圆周角定理

圆心角与圆周角定理

9th Grade

10 Qs

quiz-placeholder

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圆心角与圆周角定理

圆心角与圆周角定理

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Medium

Created by

J3L00 黄世基NG

Used 112+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

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

Media Image

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

Media Image

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

Media Image

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

Media Image

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?

不一定

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

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?

不一定

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

如图所示,O是圆心。若弧DE=弧BC,∠DOE一定等于∠BAC的两倍。

不一定

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