tolong jawab dong no 10 dan 11

•10

2x+6x+x = 180°
9x = 180°
x = 180°/9
x = 20°

<EOF = 6.20° = 120°


•11

2x+x = 180°-90°
3x = 90°
x = 90°/3
x = 30°

Sudut x <POS = <ROQ

<POS = 60°
<ROQ = 30°


Maaf jika ada kesalahan :)

nomer 10
sudut EOF = 6x = 6 x 20 = 120
2x + 6x + x = 180
9x = 180
x = 180 / 9 = 20

nomer 11
sudut POS = 2x = 2 x 30 = 60
2x + 90 + x = 180
3x = 180-90
3x = 90
x = 90/3 = 30