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ǰλãҳ > 2020年春北师大版七年级下数学5.3简单的轴对称图形同步练?含答? - 百度文库

2020年春北师大版七年级下数学5.3简单的轴对称图形同步练?含答? - 百度文库

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2020ʦѧ5.3򵥵Գͼͬϰ

(1ʱ)

1εĶΪ40㣬ĵ׽ǶΪ( ) A40 C60

B50 D70

2һǵĶΪ50㣬򶥽ǵĶΪ( ) A50 C65

B80 D5080

3ͼ48-6ڡABCУBCAB5ACijΪ( )

ͼ48-6

A2 C4

B3 D5

4ͼ48-7ڡABCУABACDΪBCе㣬BAD35㣬CĶΪ( )

ͼ48-7

A35 C55

B45 D60

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A30 C50

B60 D45

6ͼ48-9ʾڡABCУACADBDDAC80㣬BĶ( )

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A40 C25

B35 D20

7ͼ48-10ڡABCУABACADBCڵD.AB6CD4ABCܳ________

ͼ48-10

8ͼ48-11ABCǵֱ(ABACBAC90)ADǵױBCϵĸߣB______________C______________BAD______________DAC______________.ͼȵ߶____________________________.

ͼ48-11

9ͼ48-12ڡABCУABACDBCе㣬EADϣԳƵ˵BECE.

ͼ48-12

10ͼ48-13ڡABCУABACB36㣬DBCһ㣬CDAC12Ķ

ͼ48-13

11ͼ48-14ڡABCУABACADBCϵߣBEACڵE.֤CBEBAD.

ͼ48-14

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1D 2.D 3.D 4.C 5.A 6.C 7.20

845 45 45 45 ABAC BDADCD 9 10.172㣬236. 11

2020ʦѧ5.3򵥵Գͼͬϰ

(2ʱ)߶δֱƽߵ

1ͼ49-6ABCȵĵǡABC( )

ͼ49-6

AߴֱƽߵĽ BƽߵĽ CߵĽ DߵĽ

2ͼ49-7ڡABCУABACBAC100㣬ABĴֱƽDEֱABBCڵDEBAE( )

ͼ49-7

A80 C50

B60 D40

3ͼ49-8ڡABCУABACBAC36㣬DE߶ACĴֱƽߣBEaAEbúabĴʽʾABCܳΪ________

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4ͼ49-9ڡABCУ²ͼٷֱԵBCΪԲģ

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2020ʦѧ5.3򵥵Գͼͬϰ (1ʱ) 1εĶΪ40㣬ĵ׽ǶΪ( ) A40 C60 B50 D70 2һǵĶΪ50㣬򶥽ǵĶΪ( ) A50 C65 B80 D5080 3ͼ48-6ڡABCУBCAB5ACijΪ( ) ͼ48-6 A2 C4 B3 D5 4ͼ48-7ڡABCУABACDΪBCе㣬BAD35㣬CĶΪ( ) ͼ48-7 A35 C55 B45

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