配套习题- 角的比较与运算 -【青果学院】

1/5单选题

难度：

1.把一个平角分成三等份，最两端两个角的角平分线所成的角的度数为( )。

A	150°
B	120°
C	90°
D	60°

正确答案：Qg==

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2/5单选题

难度：

2.下列各角中，是钝角的是( )

A	周角
B	周角
C	平角
D	平角

正确答案：Qw==

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

3/5单选题

难度：

3.如图，若∠AOB=∠COD，那么( )

A	∠α＞∠β
B	∠α＜∠β
C	∠α＝∠β
D	∠α+∠β＝∠COD

正确答案：Qw==

4oi14oigQU9CPeKIoENPRO+8jOKItOKIoEFPQi3iiKBDT0I94oigQ09ELeKIoENPQu+8jOWNs+KIoM6x77yd4oigzrI=

4/5单选题

难度：

4.如图，O是直线ι上一点，∠AOB=100°,则∠1+∠2=____.

A	80°
B	70°
C	90°
D	60°

正确答案：QQ==

4oi14oigQU9CK+KIoDEr4oigMj0xODDCsO+8jOKIoEFPQj0xMDDCsO+8jOKItOKIoDEr4oigMj04MMKw44CC

5/5单选题

难度：

5.如果∠AOB＝45°，∠BOC＝30°，则∠AOC等于 ( )

A	75°
B	15°
C	75°或15°
D	不能确定

正确答案：Qw==

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