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Jawabannya seperti itu semoga membantu yyyp°=180-63
=117°
jawab.C
5.x+50+x-30 =180
2x+20=180
2x=160
x=80°
jawab.B
6.< A1 = < B1 =<A3 =180-<A2
=180 -54
=126°
< A3 =3x
x=126/3
=42°
< B1 =4y
y=31,5
x+y=42+31,5 =73,5°
jawab.D