Jawabanmu

Jawaban paling cerdas!
2014-05-24T00:07:12+07:00
180°=2x + 20°+ x + 10°
180°=3x + 30°
180°-30°= 3x
150°= 3x
x= 150°/3
x= 50°

180°=2x+20°+3y
180°=2(50°) +20°+3y
180°=100°+20°+3y
180°-120°=3y
60°=3y
y=60°/3
y=20°

R=180°- Q
R= 180°- 60°
R=120°

S=Q
S=x+10°
S=50°+10°
S=60°

smga membantu ^^
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