Question

Tolong jawab no 8,9,10 ya pake cara

Answer 1

8.
180=2x + 6x + x
180=9x
x= 180/9
x= 20

<foc = 6 × 20 = 120

9.
180 = 90 + 2x + x
180 = 90 + 3x
180-90 = 3x
x= 90/3 = 30
<roq = <pot = 30°

10.
90 = 6a + 3a
9a = 90
a= 90/9 =10

<ust =3a
<ust = 3 × 10=30°