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Урок з геометрії 7 клас PowerPoint PPT Presentation


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Урок з геометрії 7 клас

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7

, , . , , , 7 . , 9 . ( ). 9 . 6 1 , 7 8 1,5 9 3 .


7

7

. . -

: ; , ; , , .

: .

: , , ( )

.

/

/


7

  • . 1, . (1 )

    )- ;

    ) ;

    ) ;

    )

  • . 8, . (1 )

    )D- ;

    ) D ;

    ) D ;

    ) D


7

2. (1 ) . 2 =, =10 , =5 . :

) 25 ;

) 20 ;

) 10 ;

) 15 .

2. (1 ) . 9 MN=KN=5. MK=8 . :

) 21 ;

) 18 ;

) 13 ;

) 10 .


7

3. (1 ) , =400 (. 3). :

) 1400 ;

) 400 ;

) 500 ;

) .

3. (1 ) , =400 (. 10). :

) 700 ;

) 200 ;

) 1100 ;

) .


7

4. (1 ) BO=OD; ABO= CDO (. 4).

: ABO= CDO

4. (1 ) O=O; BO= DO (. 11).

: ABO= CDO


7

5. (1 ) , , =500 ; BF=1300(. 5).

6. (1 )

48 , 15. .

5. (1 ) , , =650 ; F=650(. 12).

6. (1 )

36 , 10. .


7

7. (1,5 ) : ; ; (. 6). : .

8. (1,5 )

45 , 3 . .

7. (1,5 ) : ; ; (. 13). : -

8. (1,5 )

37 , 5 . .


7

9. (3) . 7 =CD, BC=AD, BM , DK ADC. , = CDK.

9. (3) . 14 =CD, BC=AD, D, CM BCD. , = CDK.


7

V. - ?- ?- , , ?VI. 1. 2. ' .


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