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《平行四边形&特殊的平行四边形》

Authored by 榆婷 陈

Mathematics

8th Grade

Used 1+ times

《平行四边形&特殊的平行四边形》
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26 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

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

Media Image

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

Media Image

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

Media Image

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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