9eme Hosni Thales

  • November 2019
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  • Words: 214
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:

Pro

www.mathchalabi.c.la

Prof .M.JAD

M

3

(AB)

AH AC BN BA

;

.H .

(AC)

AB HM BM BC

.

(AC)

1

[ DC ] [ AB ] . DC

2

.

IF = 3ID (BH)

ABC

[ AB ]

M

(AC) S

(KM)

(AC) (AB) (CE)

1

AM AK = AB AH AK × KS = AH × KM

IB 1 = IC 3 [ ID )

:

:

2 F 3 (

( DB ) // ( FC )

)

:

:

1

F

( M ≠ A; M ≠ B ) (AC) B

= 6cm AB = 2cm : I ( BC ) ( AD )

3

:5 K

ABCD

.

(MN)//(AH)

( H ∈ ( AC ))

:1

(BF)

F E

( :2

ABC (BC) // (EF): B .G (AC)

AF AE AE AC AB AB AC 2 = AF × AG

AC AG :

,C

.D (AB) .(BC)//(DG) :

2

[ ME ]

1

[CN ] [ BM ]

2 :3 ABC

[ NE ]

.AMN 119 117

28 27 26 14 13 9

:

AM AC www.mathchalabi.c.la

C M A N

AE AN

.(BC)

.

AN AB

(EF)

BC=5cm B ,BM=2,5cm (BC) B BA=2BN (AB)

1 2

AF AM :4 ABC N

3 M

Pro

Prof .M.JAD

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