Réponse:
a) 180 - 27 - 38 = 163 - 38 = 125
180 - 125 = 55 degrés
b) 180- 62 = 118
118 + 28 = 146
180 - 146 = 34
180 - ( 34 + 82 ) = 180 - 116 = 64 degrés
c) 180 - 132 = 58
58 + 90 = 148
180 - 148 = 32 degrés
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Réponse:
a) 180 - 27 - 38 = 163 - 38 = 125
180 - 125 = 55 degrés
b) 180- 62 = 118
118 + 28 = 146
180 - 146 = 34
180 - ( 34 + 82 ) = 180 - 116 = 64 degrés
c) 180 - 132 = 58
58 + 90 = 148
180 - 148 = 32 degrés