➢ Nilai x
3x - 6° + 4x + 25° = 180°
7x + 19° = 180°
7x = 180° - 19°
7x = 161°
x = 23°
➢ Pelurus AOC
= BOC
= 4x + 25°
= 4(23°) + 25°
= 92° + 25°
= 117° (C.)
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➢ Nilai x
3x - 6° + 4x + 25° = 180°
7x + 19° = 180°
7x = 180° - 19°
7x = 161°
x = 23°
➢ Pelurus AOC
= BOC
= 4x + 25°
= 4(23°) + 25°
= 92° + 25°
= 117° (C.)