
《平行四边形&特殊的平行四边形》
Authored by 榆婷 陈
Mathematics
8th Grade
Used 1+ times

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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如图,小义同学想测量池塘A,B两处之间的距离.他先在A,B外选一点C,然后步测AC,BC的中点为D,E,测得DE=20m,则A,B之间的距离为()
10m
20m
30m
40m
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在▱ABCD中,∠A与∠B的度数之比为1:2,则∠C的度数是()
120°
100°
80°
60°
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如图,在▱ABCD中,∠ADC的平分线DE交BC于点E,若AB=11,BE=4,则AD的长为()
15
11
20
52
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如图,在平行四边形ABCD中,点M为边AD上一点,AM=2DM,BM平分∠ABC,点E,F分别是BM,CM的中点,若EF=3cm,则AB的长为()
5.5cm
5cm
4.5cm
4cm
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在平面直角坐标系中,平行四边形ABCD的顶点A,B,D的坐标分别是(0,0),(5,0),(2,3),则顶点C的坐标是()
(3,7)
(5,3)
(7,3)
(8,2)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如图,在四边形ABCD中,AB∥CD,添加下列一个条件后,一定能判定四边形ABCD是平行四边形的是()
AB=CD
AD=BC
AB=BC
∠B+∠C=180°
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在Rt△ABC中,∠ACB=90°,CD是斜边AB上的中线,若CD=5,则AB的长为()
2.5
5
10
15
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