a+b+c=180 e a/5=b/3=c/1
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a + b + c = 180
a = b = c a = 5c
5 3
b = 3c ; 3a = b
3c = b a = b
3
a + b + c = 180
5c + 3c + c = 180
9c = 180
c = 180/9
c = 20
a = 5c
a = 5.20
a = 100
a + b + c = 180
100 + b + 20 = 180
120 + b = 180
b = 180 - 120
b = 60
a = b = c a = 5c
5 3
b = 3c ; 3a = b
3c = b a = b
3
a + b + c = 180
5c + 3c + c = 180
9c = 180
c = 180/9
c = 20
a = 5c
a = 5.20
a = 100
a + b + c = 180
100 + b + 20 = 180
120 + b = 180
b = 180 - 120
b = 60
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