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等腰三角形

Authored by Erfu Liu

Mathematics

8th Grade

Used 5+ times

等腰三角形
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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

一边长为3,另一边长为6的等腰三角形的周长是(  )

12

15

12,15

9

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

等腰三角形的底角为65°,则它的顶角为(  )

40°

50°

60°

80°

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

等腰三角形的一个外角是60°,则它的顶角的度数是______

90

100

110

120

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

如图,△ABC中,AB=AC.

(1)当∠B=70°时,∠A=________

20

30

40

50

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

如图,△ABC中,AB=AC.

当∠A=20°时,∠B=________.

60

70

80

90

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

如图,在△ABC中,AB=AD=DC,∠C=36°,求∠B的度数.

36

72

18

90

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

在△ABC中,AC=BC,CD为AB边上的高,∠ACB=92°,则∠ACD的度数为(  )

45

46

50

60

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