Tolong caranya bagaimana

180=2x+6x+x
180=9x
180:9=x
20=x
A.<AOF=2x=2.20=40
B.<FOE=6x=6.20=120
C.<DOE=x=20
D.<COB=6x=120
E.<COD=2x=40
F.<BOC=6x=120
G.<AOB=x=20
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