besar <COE Pada gamvar tersebut

1 Jawaban

  • <AOE=(4x+15)°
    <DOE=(3x+10)°
    <COD=(2x+5)°
    <BOC=(x°)
    <AOE+<DOE+<COD+<BOC=180°(Karena berpelurus)
    4x+15°+3x+10°+2x+5°+x=180°
    10x+30°=180°
    10x=180°-30°
    10x=150°
    x=15°
    <COE=<COD+<DOE
    <COE=2x+5°+3x+10°
    <COE=5x+15°
    <COE=5(15)+15
    <COE=90°(B)