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Kemungkinan soal
∠ APB + ∠ AQB + ∠ ARB = 144°
∠ APB + ∠ AQB + ∠ ARB = 144°
∠ AQB = 144/3
∠ AQB = 48°
∠ AOB = 2 × ∠ AQB
∠ AOB = 2 × 48°
∠ AOB = 96°