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Sagot :

a) 60 degrés
b) 180-20-90 = 70 degrés
c) 180-20=160 dégrées
3) 53+35= 88 degrés
53 + 53 + 35 = 141 degrés

Bonsoir,

qCn = 20 + 90 => 110°

mCn= 180 - 110 =>70°

mCp = 70 + 90 =>160°

HDF = HDG + GDF = 53 + 35 =>88°

HDE = HDG + GDF + FDE = 53+35 +53 =>141°

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