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初二數強_軸對稱

Authored by 蔡靖晴蔡靖晴 蔡靖晴蔡靖晴

Mathematics

8th Grade

Used 8+ times

初二數強_軸對稱
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8 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 5 pts

三角形ABC是一個等邊三角形,它的周長為24,則它的邊長是

72

8

6

48

2.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

如果等腰三角形的頂角為72度,則它底角的度數為

72

36

108

54

3.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Media Image

如圖,等腰三角形ABC中,AB=AC,AD是底邊上的高,若AB=5,BC=6,則DC=?

3

5

6

10

4.

MULTIPLE CHOICE QUESTION

45 sec • 5 pts

Media Image

如圖,等腰三角形ABC中,AB=AC,AD是角BAC的平分線,AC=5,BD=2,求三角形ABC的周長.

10

12

14

16

5.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

點A(-2,8)關於x軸的對稱點是

(-2,-8)

(2,8)

(8,-2)

(-2,8)

6.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

點B(0,-2)關於y軸的對稱點是

(-2,0)

(0,-2)

(2,0)

(0,2)

7.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

如果點C(a,2)關於x軸的對稱點是D(1,b),則a+b=?

-1

0

1

2

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