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2018一线名师整理新人教版九年级数学上册第二十三章图形的旋转全套同步练习题及答案共27页


23.1.1



____________

O ________________________





1.

A B

C

D

2 26 180

A6 B7 C8 D9 3. AEFG ABCD A .
A 60 B 120 C 60 D 120

4. 1

A900

B600

C 450

D300

5. 2,

(

)

A300

B600

C900

D1200

2
1

6 P P______ 7AOB AOBAOA=90______
______ A ______ AB ______B ______BOB=______
7 8 ABC O DEF ______
______AO=______AB=______ACB=______

8

9

9 ABC O ______

10 ABCD O ______
11 45 ______
12.ABC C 350ABCBCA=1000B/CA=_______

13. 7P ABC BMC BPA PBM______
A' A B'

B C

12

13

14

14 1 B



. 15
1ABC BC BC ECD 2 BC ABC 180DBC

(1)

(2)

(3)

(4

3 A ABC 90AED







4 ABCD E AD F BA AF= 1 AB 2
1 4 ABE ADF
2 4 BE DF
16. 1
1 4


23.1.1

O,,,,

CBDCC



6.

7.O90AABB90

8.O,AODDO,ED, DFE;

9.120

10.180

11.270

12.100 13.60 14. 15

16. 1 A ABE 90

2BE=DFBEDF





RtODD RtOEE

ODD=OEE=90

DOD=EOE=90-BOE

OD=OD

ODDOEE

S =S ODD` OEE`
S =S = 1 OE`BD` OEBD 4
23.1.2

1

2.1

1-5ADCBC

6.

7. ACE,CE 9.(-4,1)

8. 3CM 10. BE+DF=EF

11.360. 123 36 .

12---14

15 ABCD AKLM

AB=ADAK=AMBAD=KAM 90

ADM A BAD ABK BK=DM

16.1ABC AC 1 AB x BC 3 x



1 1



x 3



3 x



x x

1



x



2



2 AC 1 x 2 (3 x)2 x 2 3x 4 0

AB x 2 (3 x)2 1 x 5 1 x 2 3

BC (3 x)2 1 x 2 x 4 1 x 2

C

3

x5 x4

3

3

M

AD

B

N

17.161352 AOA1 OA1B1 90

B1

OA // A1B1

OA AB A1B1 OAA1B1

A1

B

O

A



23.1.2

1.(1)

(2)



(3)

2.---

1



2

3



(4)
1
A B C

D 2

3.

A.60

B.90

C.72

D.120

4

A

B 45

C 180

D 90

5 ABC A ABCBAC=130BAC=80 A50 B210 C50 210 D130
6_________.
7ABC ADE 42BCDE ABD A 42______________ BD=_________

8OAB 0 0AB B AB

AB=4cmBB=lcm AB _______cm

9 A (14) OA O 90

OA A

___________.

10 ABCD A BCCD EFEAF=45 EAF=45 EF BCCD BE+DF EF

________ 11. A(3,0) B(0,4) OAB ...__________
12.""

13.AOD=BOC=60,AOC AOB COD



1;

2;

D

3

AOC

B





EF

4BOC

A

O

C

5A=15 ACB



14 . O P 45.

P.
O. O AB 90.
O.
A B
. O ABC 120. B
C .O
A
. B ABC 180. C B
15K ABCD AK AKLM LM AK BKA DM BK DM

16 AB MN MN 4 MA 1 MB 1 A M B N MN CABC AB x 1 x 2ABC x .

C

M

A

B

N

17. RtOAB OAB 90 OA AB 6 OAB O

90 OA1B1

1 OA1 _____________ AOB1 _____________

B1

A1

B

2 AA1 OAA1B1

O

A

23.1.2

1

2.1

1-5ADCBC

6.

7. ACE,CE

8. 3CM

9.(-4,1)

10. BE+DF=EF

11.360. 123 36 .

12---14 15 ABCD AKLM
AB=ADAK=AMBAD=KAM 90 ADM A BAD ABK BK=DM

16.1ABC AC 1 AB x BC 3 x



1 1



x 3



3 x



x x

1



x



2



2 AC 1 x 2 (3 x)2 x 2 3x 4 0

AB x 2 (3 x)2 1 x 5 1 x 2 3

BC (3 x)2 1 x 2 x 4 1 x 2

C

3

x5 x4

3

3

M

AD

B

N

17.161352 AOA1 OA1B1 90

B1

OA // A1B1

OA AB A1B1 OAA1B1

A1

B

O

A

23.2.1 1



2

1

2

3

3.

(1) ()





(2)











1

2.













A.1 B.2 C.3 D.4

3.



A.

B.

C.

D.

4.



A

B

C



D

5.1

2



1
. 2
6. 120

A. 15 30 B. 30 45 C. 45 60D. 30 60

7.ABC C01 180A'B'C A' (a,b) A

y B' A'

O

x

C

A B

A (a, b) C (a, b 1)

B (a, b 1) D (a, b 2)

8.




9.ABCABC P 180
1 PA PA 2 A PA 3 A A P 4ABCABC 10. ABC C=90BC=2 AC O
180 B B B B
11..ABC P ABC.

12.1 ABCD O ABCD ABCD

O O 2,?

1

2

13. ABCD OO C , ABCD ABCD O .

. 14.ABC ABC.
15. ABCD O , ABCD .

16 A3-3B-2-1 C-1-2 1ABC O

A 1 B 1 C 1 2 B y B 2 B 2 h A 1 B 1 C 1 h

23.2.1 1A 2D 3C 4D 5D 6D 7D 8
91(2)18034
10 2 5
11

12 1

2

13 14

15 OB=OD,OA=OC. ABCD . 16
2 B 2 2-1h 2h3.5
23.2.2
1..( )
2.,( )

3

A

B

C

D

4.(1) 4 180 (2).

(1)

2

A

B

C

D

5 NAME

AN

BA

M

DE

6. .

A.

B.

C.

D.

7 ABC (01)(02)(30) M (33) N(3 3)

P(30) Q(31) ABC

AM

BN

CP

DQ

8..





9. n n n

n

10. 180

____________. 11.
______________ ___________________________. 12. 10
_______________________________________________________

5 ______________________________________________________
5 _______________________________________
13ABC O A1B1C1A1B1C1 B1
90A2B1C2.

14. 15-3-7 15-3-6 a b

a

b

15.: AD ABC A ,DE//AC AB E.DF//AB AC E. EF AD .

23.2.2 1.A 2. C

3.A 4.A 5.A 6.A 7.C

8 9n 10 11_ __ __ 12 13 14 15DE//AC DF//AB AEDF DF//AB 1=3 AD BAC,1=2 1=3 2=3 AF=DF AEDF AD EF E, F AD

23.2.3





1

,

, y



2.,

1;

2;

3.



x ,

1 a 0 P( a2 , a 1)P

A B C D

2ABxACyBC( )

Ax By C Dx

y

3A32x4A', A'y



A(-3,2) B(-1,2) C.(1,2) D.(1,-2)

4A13B



A(-1,-3)

B(-3,- 1)

C.(-2,-6)

D.(-6,-2)

5. A -23, B 01, A B

A -2,2 B.2,-3

C. 2,-1 D.2,3



6PxyxP 1 ______yP 2 ______

P 3 ______

7. M (3,-5), x M'

,

y M'

,

.

8. M(-2,3 N2,3______ A(-2,-4 B2,4______

G(4,0 H-4,0____ _____.

9 y x 3 P(3, n )PP________.

10. P(a,3) P'(-4,b),(a+b)

.

11. M( 1 ,3m) m ____________. 2


12. ABCD .

13., P(2,1), T(t,0) x .
(1) P P; (2) t ,PTO ? 14. A(2m3) B(61n), m n .
15. A(32m+1) m .
16. y=x y=1/x AC AB x BCD x D ABCD

23.2.3 1.D 2.C 3.C 4.A 5.C 6.x-y-xy -x-y 7.(3,5) (-3,-5)(-3,-5) 8. xy 9.P-3-6 10.1 11.m<0
12.ABCD (2,3)(4,1)(3,1) (1,0) 13.(1) P P(2,1).

(2)OP= 5 .
(a) T .

T1O=PO= 5 ,PTO ,

T1( 5 ,0).

(b) T .
T2O=T2P,PTO , T2( 5 ,0). 4

T3O=PO ,PTO , T3( 5 ,0).

T4P=PO ,PTO , T4(4,0).

, t 5 , 5 , 5 ,4. 4

14.

AB



2m 3



6 (1




n).

m3n2.

15.A(32m+1),
A(32m+1).A 2m+10.m 1 . 2
16. y=x=1/x A 1,1 C -1-1 DB=2 AB=1 ABD
1/2211 DBC 1 ABCD 2



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