
初中数学多边形

Quiz
•
Mathematics
•
7th - 9th Grade
•
Hard
James Wee
Used 10+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
现有长分别为16cm,34cm的两根木棒,要从下列木棒中选取一根钉一个三角形的木
架,应选取哪一根( )
16cm
34cm
18cm
50cm
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如图在△ABC中,∠ACB=900,CD是边AB上的高。图中与∠A相等的角是
∠B
∠ACD
∠BCD
∠BDC
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如图,AB∥CD,∠A=700,∠B=400,则∠ACD=( )
55
70
40
110
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一个圆的半径增加2cm,则这个圆( )
周长增加4cm
周长增加 cm
面积增加4cm^2
面积增加4 pi cm^2.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列性质中,平行四边形具有而非平行四边形不具有的性质是( )
内角和为360
外角和为360
对边不相等
对角相等
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如果一个多边形的内角和等于一个三角形的外角和,那么这个多边形是( )
三角形
四边形
五边形
六边形
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如图,直线 ∥ ,A是直线 上的一个定点,线段BC在直线 上移动,那么在移动过程中 的面积 ( )
变大
变小
不变
无法确定
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