Penjelasan dengan langkah-langkah:
AOB + BOC = 180 (sudut lurus)
2x + 35 + 5x - 30 = 180
7x + 5 = 180
7x = 180 - 5
7x = 175
x = 175/7
x = 25°
BOC = 5x - 30
BOC = 5.25° - 30
BOC = 125° - 30
BOC = 95°
Jawaban:
∠AOB + ∠BOC = 180°
2x + 35 + 5x - 30 = 180°
2x + 5x + 35 - 30 = 180°
7x + 5 = 180°
7x = 180° - 5
7x = 175°
x = 175°/7
∠BOC = 5x - 30
= 5(25)° - 30
= 125° - 30
= 95°
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Penjelasan dengan langkah-langkah:
AOB + BOC = 180 (sudut lurus)
2x + 35 + 5x - 30 = 180
7x + 5 = 180
7x = 180 - 5
7x = 175
x = 175/7
x = 25°
BOC = 5x - 30
BOC = 5.25° - 30
BOC = 125° - 30
BOC = 95°
Jawaban:
Mencari nilai x
∠AOB + ∠BOC = 180°
2x + 35 + 5x - 30 = 180°
2x + 5x + 35 - 30 = 180°
7x + 5 = 180°
7x = 180° - 5
7x = 175°
x = 175°/7
x = 25°
Besar ∠BOC
∠BOC = 5x - 30
= 5(25)° - 30
= 125° - 30
= 95°