Napisz, jaka będzie miara kąta .
a) = 50°
b) = 30°
c) = 85°
a) 180° - 100° = 80°
180° - 80° = 100°
= 100° : 2 = 50°
b) 180° - 120° = 60°
180° - 60° = 120°
3 + = 120°
4 = 120°
= 30°
c) 180° - 115° = 65°
180° - 65° = 115°
= 115° - 30° = 85°
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