Besar sudut pelurus = 180°
Penjelasan dengan langkah-langkah:
4x - 4 + 2x + 16 = 180
4x + 2x + 16 - 4 = 180
6x + 12 = 180
6x = 180 - 12
6x = 168
x = 168/6
x = 28° (D)
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Besar sudut pelurus = 180°
Penjelasan dengan langkah-langkah:
4x - 4 + 2x + 16 = 180
4x + 2x + 16 - 4 = 180
6x + 12 = 180
6x = 180 - 12
6x = 168
x = 168/6
x = 28° (D)