Respuesta :

msm555

Step-by-step explanation:

9.

<M=½(145-55)=45°

10.

<E=½(arc QG-arc DF)

30×2=arc QG-60

arc QH=60+60=120°

11.

<v=½(44x+3-73)

31×2+70=44x

x=132/44

x=3

12.

<C=½(134-64)

6x-7=35

6x=35+7

x=42/6

x=7