Jawab:
95°+(3x-5)° + (x+10)°= 180°
95+3x-5+x+10= 180
4x+100 = 180
4x= 80
X= 20°
Jadi sudut BAC adalah
3x-5 = 3(20) - 5=60-5=55° (c)
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Jawab:
95°+(3x-5)° + (x+10)°= 180°
95+3x-5+x+10= 180
4x+100 = 180
4x= 80
X= 20°
Jadi sudut BAC adalah
3x-5 = 3(20) - 5=60-5=55° (c)