gimana caranya tolong ya pakai cara

jawaban C.36
• 60+5x = 180° (besar pelurus)
5x = 120
x = 24°
• 4x = 4(24) = 96°
• 180° - 96° = 84° (ini besar sudut C yg didalam segitiga)
• 180°-60°-84°= 36°