bonjour
A = ( 4/3 - 2 /9 ) x 5 /4
= ( 12/9 - 2 /9 ) x 5 /4
= 10/9 x 5/4
= 50/36
= 25/18
B = ( 4/6 - 10/6 ) : ( 12/16 + 3 /16 )
= - 6/6 : 15/16
= - 1 x 16/15
= - 16/15
DMP est rectangle en P
selon le th de Pythagore
DP² = 420 ² - 252 ²
DP² = 112 896
DP = √112 896 = 336 m
selon le th de Thalès
DM/DA = DP/DN = MP*AN
420 /DA = 336 / 1000
DA= 120000 : 336 ≅ 357 m arrondi unité
= 0.357 km
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bonjour
A = ( 4/3 - 2 /9 ) x 5 /4
= ( 12/9 - 2 /9 ) x 5 /4
= 10/9 x 5/4
= 50/36
= 25/18
B = ( 4/6 - 10/6 ) : ( 12/16 + 3 /16 )
= - 6/6 : 15/16
= - 1 x 16/15
= - 16/15
DMP est rectangle en P
selon le th de Pythagore
DP² = 420 ² - 252 ²
DP² = 112 896
DP = √112 896 = 336 m
selon le th de Thalès
DM/DA = DP/DN = MP*AN
420 /DA = 336 / 1000
DA= 120000 : 336 ≅ 357 m arrondi unité
= 0.357 km