Answer :

Anonimity

#1

88° + 96° + 70° + x = 360°

254° + x = 360°

x = 106°

#2

135° + 108° + x = 360°

243° + x = 360°

x = 117°

#3

94° + 30° + x + 81° = 270°

205° + x = 270°

x = 65°

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