Nilai a
180° = 105° + 3a
3a = 180° – 105°
3a = 75°
a = 25°
Nilai
180° = 105° + 3
3b = 180° – 105°
3b = 75°
b = 25°
a + b = 25° + 25°
a + = 50°
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Nilai a
180° = 105° + 3a
3a = 180° – 105°
3a = 75°
a = 25°
Nilai
180° = 105° + 3
3b = 180° – 105°
3b = 75°
b = 25°
a + b = 25° + 25°
a + = 50°
