mesure des angles
ADC = 180 - ( 28 + 39 ) = 113 °
ADB = 180 - 113 = 67 °
ABD = 180 - ( 67 + 28 ) = 85°
BAD = 28°
Bonsoir,
la somme des angles d'un triangle= 180°
ADC = 180 -28-39 => 113°
ADB =
un angle palt = 180°
180- 113 => 77°
ABD = 180-28 - 77 => 75°
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mesure des angles
ADC = 180 - ( 28 + 39 ) = 113 °
ADB = 180 - 113 = 67 °
ABD = 180 - ( 67 + 28 ) = 85°
BAD = 28°
Bonsoir,
la somme des angles d'un triangle= 180°
ADC = 180 -28-39 => 113°
ADB =
un angle palt = 180°
180- 113 => 77°
BAD = 28°
ABD = 180-28 - 77 => 75°